diff --git a/.circleci/config.yml b/.circleci/config.yml
index 887cfaad9c..0109051768 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -9,10 +9,8 @@ build-docker-image-job: &build-docker-image-job
     - checkout
     - run: sudo apt update
     - run: sudo apt install python3-pip
-    - run: sudo pip3 install -r requirements_bundles.txt
     - run: .circleci/update_version
     - run: sudo npm install --global --force yarn@1.22.10
-    - run: yarn bundle
     - run: .circleci/docker_build
 jobs:
   backend-lint:
@@ -83,10 +81,8 @@ jobs:
       - checkout
       - run: sudo apt update
       - run: sudo apt install python3-pip
-      - run: sudo pip3 install -r requirements_bundles.txt
       - run: sudo npm install --global --force yarn@1.22.10
       - run: yarn cache clean && yarn --frozen-lockfile --network-concurrency 1
-      - run: yarn bundle
       - run:
           name: Run App Tests
           command: yarn test
diff --git a/Dockerfile b/Dockerfile
index 68575c4171..7f41d1b7a3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -39,46 +39,46 @@ RUN useradd --create-home redash
 # Ubuntu packages
 RUN apt-get update && \
   apt-get install -y --no-install-recommends \
-    curl \
-    gnupg \
-    build-essential \
-    pwgen \
-    libffi-dev \
-    sudo \
-    git-core \
-    # Postgres client
-    libpq-dev \
-    # ODBC support:
-    g++ unixodbc-dev \
-    # for SAML
-    xmlsec1 \
-    # Additional packages required for data sources:
-    libssl-dev \
-    default-libmysqlclient-dev \
-    freetds-dev \
-    libsasl2-dev \
-    unzip \
-    libsasl2-modules-gssapi-mit && \
-    apt-get clean && \
-     rm -rf /var/lib/apt/lists/*
+  curl \
+  gnupg \
+  build-essential \
+  pwgen \
+  libffi-dev \
+  sudo \
+  git-core \
+  # Postgres client
+  libpq-dev \
+  # ODBC support:
+  g++ unixodbc-dev \
+  # for SAML
+  xmlsec1 \
+  # Additional packages required for data sources:
+  libssl-dev \
+  default-libmysqlclient-dev \
+  freetds-dev \
+  libsasl2-dev \
+  unzip \
+  libsasl2-modules-gssapi-mit && \
+  apt-get clean && \
+  rm -rf /var/lib/apt/lists/*
 
 
 ARG TARGETPLATFORM
 ARG databricks_odbc_driver_url=https://databricks.com/wp-content/uploads/2.6.10.1010-2/SimbaSparkODBC-2.6.10.1010-2-Debian-64bit.zip
 RUN if [ "$TARGETPLATFORM" = "linux/amd64" ]; then \
-    curl https://packages.microsoft.com/keys/microsoft.asc | apt-key add - \
-    && curl https://packages.microsoft.com/config/debian/10/prod.list > /etc/apt/sources.list.d/mssql-release.list \
-    && apt-get update \
-    && ACCEPT_EULA=Y apt-get install  -y --no-install-recommends msodbcsql17 \
-    && apt-get clean \
-    && rm -rf /var/lib/apt/lists/* \
-    && curl "$databricks_odbc_driver_url" --location --output /tmp/simba_odbc.zip \
-    && chmod 600 /tmp/simba_odbc.zip \
-    && unzip /tmp/simba_odbc.zip -d /tmp/ \
-    && dpkg -i /tmp/SimbaSparkODBC-*/*.deb \
-    && printf "[Simba]\nDriver = /opt/simba/spark/lib/64/libsparkodbc_sb64.so" >> /etc/odbcinst.ini \
-    && rm /tmp/simba_odbc.zip \
-    && rm -rf /tmp/SimbaSparkODBC*; fi
+  curl https://packages.microsoft.com/keys/microsoft.asc | apt-key add - \
+  && curl https://packages.microsoft.com/config/debian/10/prod.list > /etc/apt/sources.list.d/mssql-release.list \
+  && apt-get update \
+  && ACCEPT_EULA=Y apt-get install  -y --no-install-recommends msodbcsql17 \
+  && apt-get clean \
+  && rm -rf /var/lib/apt/lists/* \
+  && curl "$databricks_odbc_driver_url" --location --output /tmp/simba_odbc.zip \
+  && chmod 600 /tmp/simba_odbc.zip \
+  && unzip /tmp/simba_odbc.zip -d /tmp/ \
+  && dpkg -i /tmp/SimbaSparkODBC-*/*.deb \
+  && printf "[Simba]\nDriver = /opt/simba/spark/lib/64/libsparkodbc_sb64.so" >> /etc/odbcinst.ini \
+  && rm /tmp/simba_odbc.zip \
+  && rm -rf /tmp/SimbaSparkODBC*; fi
 
 WORKDIR /app
 
@@ -93,7 +93,7 @@ RUN pip install pip==20.2.4;
 COPY requirements_all_ds.txt ./
 RUN if [ "x$skip_ds_deps" = "x" ] ; then pip install -r requirements_all_ds.txt ; else echo "Skipping pip install -r requirements_all_ds.txt" ; fi
 
-COPY requirements_bundles.txt requirements_dev.txt ./
+COPY requirements_dev.txt ./
 RUN if [ "x$skip_dev_deps" = "x" ] ; then pip install -r requirements_dev.txt ; fi
 
 COPY requirements.txt ./
diff --git a/Makefile b/Makefile
index 3d124b4a84..f83a056af4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-.PHONY: compose_build up test_db create_database clean down bundle tests lint backend-unit-tests frontend-unit-tests test build watch start redis-cli bash
+.PHONY: compose_build up test_db create_database clean down tests lint backend-unit-tests frontend-unit-tests test build watch start redis-cli bash
 
 compose_build:
 	COMPOSE_DOCKER_CLI_BUILD=1 DOCKER_BUILDKIT=1 docker-compose build
@@ -22,9 +22,6 @@ clean:
 down:
 	docker-compose down
 
-bundle:
-	docker-compose run server bin/bundle-extensions
-
 tests:
 	docker-compose run server tests
 
@@ -34,20 +31,19 @@ lint:
 backend-unit-tests: up test_db
 	docker-compose run --rm --name tests server tests
 
-frontend-unit-tests: bundle
+frontend-unit-tests:
 	CYPRESS_INSTALL_BINARY=0 PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=1 yarn --frozen-lockfile
-	yarn bundle
 	yarn test
 
 test: lint backend-unit-tests frontend-unit-tests
 
-build: bundle
+build: 
 	yarn build
 
-watch: bundle
+watch: 
 	yarn watch
 
-start: bundle
+start: 
 	yarn start
 
 redis-cli:
diff --git a/bin/bundle-extensions b/bin/bundle-extensions
deleted file mode 100755
index 4d0d006bc5..0000000000
--- a/bin/bundle-extensions
+++ /dev/null
@@ -1,126 +0,0 @@
-#!/usr/bin/env python3
-"""Copy bundle extension files to the client/app/extension directory"""
-import logging
-import os
-from pathlib import Path
-from shutil import copy
-from collections import OrderedDict as odict
-
-import importlib_metadata
-import importlib_resources
-
-# Name of the subdirectory
-BUNDLE_DIRECTORY = "bundle"
-
-logger = logging.getLogger(__name__)
-
-
-# Make a directory for extensions and set it as an environment variable
-# to be picked up by webpack.
-extensions_relative_path = Path("client", "app", "extensions")
-extensions_directory = Path(__file__).parent.parent / extensions_relative_path
-
-if not extensions_directory.exists():
-    extensions_directory.mkdir()
-os.environ["EXTENSIONS_DIRECTORY"] = str(extensions_relative_path)
-
-
-def entry_point_module(entry_point):
-    """Returns the dotted module path for the given entry point"""
-    return entry_point.pattern.match(entry_point.value).group("module")
-
-
-def load_bundles():
-    """"Load bundles as defined in Redash extensions.
-
-    The bundle entry point can be defined as a dotted path to a module
-    or a callable, but it won't be called but just used as a means
-    to find the files under its file system path.
-
-    The name of the directory it looks for files in is "bundle".
-
-    So a Python package with an extension bundle could look like this::
-
-        my_extensions/
-        ├── __init__.py
-        └── wide_footer
-            ├── __init__.py
-            └── bundle
-                ├── extension.js
-                └── styles.css
-
-    and would then need to register the bundle with an entry point
-    under the "redash.bundles" group, e.g. in your setup.py::
-
-        setup(
-            # ...
-            entry_points={
-                "redash.bundles": [
-                    "wide_footer = my_extensions.wide_footer",
-                ]
-                # ...
-            },
-            # ...
-        )
-
-    """
-    bundles = odict()
-    # HACK:
-    #   bin/bundle-extensions is tested in different versions.
-    #   circleci frontend-unit-tests: python 3.5 and importlib-metadata-2.1.3
-    #   circleci backend-unit-tests: python 3.7 and importlib-metadata-5.0.0
-    if importlib_metadata.version("importlib_metadata") >= "5.0.0":
-        bundles_entry_points = importlib_metadata.entry_points(group="redash.bundles")
-    else:
-        bundles_entry_points = importlib_metadata.entry_points().get(
-            "redash.bundles", []
-        )
-
-    for entry_point in bundles_entry_points:
-        logger.info('Loading Redash bundle "%s".', entry_point.name)
-        module = entry_point_module(entry_point)
-        # Try to get a list of bundle files
-        try:
-            bundle_dir = importlib_resources.files(module).joinpath(BUNDLE_DIRECTORY)
-        except (ImportError, TypeError):
-            # Module isn't a package, so can't have a subdirectory/-package
-            logger.error(
-                'Redash bundle module "%s" could not be imported: "%s"',
-                entry_point.name,
-                module,
-            )
-            continue
-        if not bundle_dir.is_dir():
-            logger.error(
-                'Redash bundle directory "%s" could not be found or is not a directory: "%s"',
-                entry_point.name,
-                bundle_dir,
-            )
-            continue
-        bundles[entry_point.name] = list(bundle_dir.rglob("*"))
-    return bundles
-
-
-bundles = load_bundles().items()
-if bundles:
-    print("Number of extension bundles found: {}".format(len(bundles)))
-else:
-    print("No extension bundles found.")
-
-for bundle_name, paths in bundles:
-    # Shortcut in case not paths were found for the bundle
-    if not paths:
-        print('No paths found for bundle "{}".'.format(bundle_name))
-        continue
-
-    # The destination for the bundle files with the entry point name as the subdirectory
-    destination = Path(extensions_directory, bundle_name)
-    if not destination.exists():
-        destination.mkdir()
-
-    # Copy the bundle directory from the module to its destination.
-    print('Copying "{}" bundle to {}:'.format(bundle_name, destination.resolve()))
-    for src_path in paths:
-        dest_path = destination / src_path.name
-        print(" - {} -> {}".format(src_path, dest_path))
-        copy(str(src_path), str(dest_path))
diff --git a/package.json b/package.json
index b90699101b..806bc61c6e 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,6 @@
   "main": "index.js",
   "scripts": {
     "start": "npm-run-all --parallel watch:viz webpack-dev-server",
-    "bundle": "bin/bundle-extensions",
     "clean": "rm -rf ./client/dist/",
     "build:viz": "(cd viz-lib && yarn build:babel)",
     "build": "yarn clean && yarn build:viz && NODE_ENV=production webpack",
diff --git a/redash/app.py b/redash/app.py
index 67eee53bbe..0b123cc14e 100644
--- a/redash/app.py
+++ b/redash/app.py
@@ -25,7 +25,6 @@ def __init__(self, *args, **kwargs):
 def create_app():
     from . import (
         authentication,
-        extensions,
         handlers,
         limiter,
         mail,
@@ -54,7 +53,6 @@ def create_app():
     limiter.init_app(app)
     handlers.init_app(app)
     configure_webpack(app)
-    extensions.init_app(app)
     users.init_app(app)
     tasks.init_app(app)
 
diff --git a/redash/extensions.py b/redash/extensions.py
deleted file mode 100644
index f3a79dcfb2..0000000000
--- a/redash/extensions.py
+++ /dev/null
@@ -1,107 +0,0 @@
-import logging
-from collections import OrderedDict as odict
-
-from importlib_metadata import entry_points
-
-# The global Redash extension registry
-extensions = odict()
-
-# The periodic RQ jobs as provided by Redash extensions.
-# This is separate from the internal periodic RQ jobs
-# since the extension job discovery phase is
-# after the configuration has already happened.
-periodic_jobs = odict()
-
-extension_logger = logging.getLogger(__name__)
-
-
-def entry_point_loader(group_name, mapping, logger=None, *args, **kwargs):
-    """
-    Loads the list Python entry points with the given entry point group name
-    (e.g. "redash.extensions"), calls each with the provided *args/**kwargs
-    arguments and stores the results in the provided mapping under the name
-    of the entry point.
-
-    If provided, the logger is used for error and debugging statements.
-    """
-    if logger is None:
-        logger = extension_logger
-
-    for entry_point in entry_points(group=group_name):
-        logger.info('Loading entry point "%s".', entry_point.name)
-        try:
-            # Then try to load the entry point (import and getattr)
-            obj = entry_point.load()
-        except (ImportError, AttributeError):
-            # or move on
-            logger.error(
-                'Entry point "%s" could not be found.', entry_point.name, exc_info=True
-            )
-            continue
-
-        if not callable(obj):
-            logger.error('Entry point "%s" is not a callable.', entry_point.name)
-            continue
-
-        try:
-            # then simply call the loaded entry point.
-            mapping[entry_point.name] = obj(*args, **kwargs)
-        except AssertionError:
-            logger.error(
-                'Entry point "%s" cound not be loaded.', entry_point.name, exc_info=True
-            )
-            continue
-
-
-def load_extensions(app):
-    """Load the Redash extensions for the given Redash Flask app.
-
-    The extension entry point can return any type of value but
-    must take a Flask application object.
-
-    E.g.::
-
-        def extension(app):
-            app.logger.info("Loading the Foobar extenions")
-            Foobar(app)
-
-    """
-    entry_point_loader("redash.extensions", extensions, logger=app.logger, app=app)
-
-
-def load_periodic_jobs(logger=None):
-    """Load the periodic jobs as defined in Redash extensions.
-
-    The periodic task entry point needs to return a set of parameters
-    that can be passed to RQ Scheduler API:
-
-        https://github.com/rq/rq-scheduler#periodic--repeated-jobs
-
-    E.g.::
-
-        def add_two_and_two():
-            return {
-                "func": add,
-                "args": [2, 2]
-                "interval": 10,  # in seconds or as a timedelta
-            }
-
-    and then registered with an entry point under the "redash.periodic_jobs"
-    group, e.g. in your setup.py::
-
-        setup(
-            # ...
-            entry_points={
-                "redash.periodic_jobs": [
-                    "add_two_and_two = calculus.addition:add_two_and_two",
-                ]
-                # ...
-            },
-            # ...
-        )
-    """
-    entry_point_loader("redash.periodic_jobs", periodic_jobs, logger=logger)
-
-
-def init_app(app):
-    load_extensions(app)
diff --git a/redash/tasks/schedule.py b/redash/tasks/schedule.py
index 5ed4b580e7..c49f9050e1 100644
--- a/redash/tasks/schedule.py
+++ b/redash/tasks/schedule.py
@@ -7,7 +7,7 @@
 from rq.job import Job
 from rq_scheduler import Scheduler
 
-from redash import extensions, settings, rq_redis_connection, statsd_client
+from redash import settings, rq_redis_connection, statsd_client
 from redash.tasks import (
     sync_user_details,
     refresh_queries,
@@ -92,10 +92,6 @@ def periodic_job_definitions():
     # Add your own custom periodic jobs in your dynamic_settings module.
     jobs.extend(settings.dynamic_settings.periodic_jobs() or [])
 
-    # Add periodic jobs that are shipped as part of Redash extensions
-    extensions.load_periodic_jobs(logger)
-    jobs.extend(list(extensions.periodic_jobs.values()))
-
     return jobs
 
 
diff --git a/redash/worker.py b/redash/worker.py
index 28b13ee22a..8bed64e40c 100644
--- a/redash/worker.py
+++ b/redash/worker.py
@@ -9,7 +9,6 @@
 
 from redash import (
     create_app,
-    extensions,
     settings,
     redis_connection,
     rq_redis_connection,
diff --git a/requirements.txt b/requirements.txt
index 0f1e684fe7..407e2aeb2b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -59,9 +59,6 @@ sshtunnel==0.1.5
 supervisor==4.1.0
 supervisor_checks==0.8.1
 werkzeug==0.16.1
-# Install the dependencies of the bin/bundle-extensions script here.
-# It has its own requirements file to simplify the frontend client build process
--r requirements_bundles.txt
 # Uncomment the requirement for ldap3 if using ldap.
 # It is not included by default because of the GPL license conflict.
 # ldap3==2.2.4
diff --git a/requirements_bundles.txt b/requirements_bundles.txt
deleted file mode 100644
index 3f57a20dd2..0000000000
--- a/requirements_bundles.txt
+++ /dev/null
@@ -1,8 +0,0 @@
-# These are the requirements that the extension bundle
-# loading mechanism need on Python 2 and can be removed
-# when moved to Python 3.
-# It's automatically installed when running npm run bundle
-
-# These can be removed when upgrading to Python 3.x
-importlib-metadata>=1.6  # remove when on 3.8
-importlib_resources==1.5  # remove when on 3.9
diff --git a/tests/extensions/__init__.py b/tests/extensions/__init__.py
deleted file mode 100644
index e69de29bb2..0000000000
diff --git a/tests/extensions/redash-dummy/.gitignore b/tests/extensions/redash-dummy/.gitignore
deleted file mode 100644
index 1b823a2c19..0000000000
--- a/tests/extensions/redash-dummy/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-dist
-build
diff --git a/tests/extensions/redash-dummy/MANIFEST.in b/tests/extensions/redash-dummy/MANIFEST.in
deleted file mode 100644
index f42f7bd471..0000000000
--- a/tests/extensions/redash-dummy/MANIFEST.in
+++ /dev/null
@@ -1,2 +0,0 @@
-include README.md
-recursive-include redash_dummy *.jsx
diff --git a/tests/extensions/redash-dummy/README.md b/tests/extensions/redash-dummy/README.md
deleted file mode 100644
index 22c253fbcb..0000000000
--- a/tests/extensions/redash-dummy/README.md
+++ /dev/null
@@ -1,22 +0,0 @@
-# How to update the dummy extension?
-
-If you'd like to extend the dummy extension, please update the ``setup.py``
-file and the ``redash_dummy.py`` module.
-
-Please make sure to regenerate the *.egg-info directory. See below.
-
-# How to generate the redash_dummy.egg-info directory?
-
-The `egg-info` directory is what is usually created in the
-site-packages directory when running `pip install <packagename>` and
-contains the metadata derived from the `setup.py` file.
-
-In other words, it's auto-generated and you'll need to follow the following
-steps to update it (e.g. when extending the extension tests). From the
-host computer (assuming the Docker development environment) run:
-
-- `make bash` -- to create container running with Bash and entering it
-- `cd tests/extensions/redash-dummy/` -- change the directory to the directory with the dummy extension
-- `python setup.py egg_info` -- to create/update the egg-info directory
-
-The egg-info directory is *not* cleaned up by pip, just the link in the `~/.local` site-packages directory.
diff --git a/tests/extensions/redash-dummy/redash_dummy.egg-info/PKG-INFO b/tests/extensions/redash-dummy/redash_dummy.egg-info/PKG-INFO
deleted file mode 100644
index 5da2ff60c4..0000000000
--- a/tests/extensions/redash-dummy/redash_dummy.egg-info/PKG-INFO
+++ /dev/null
@@ -1,10 +0,0 @@
-Metadata-Version: 1.0
-Name: redash-dummy
-Version: 0.2
-Summary: Redash extensions for testing
-Home-page: UNKNOWN
-Author: Redash authors
-Author-email: UNKNOWN
-License: MIT
-Description: UNKNOWN
-Platform: UNKNOWN
diff --git a/tests/extensions/redash-dummy/redash_dummy.egg-info/SOURCES.txt b/tests/extensions/redash-dummy/redash_dummy.egg-info/SOURCES.txt
deleted file mode 100644
index 8a4946a14d..0000000000
--- a/tests/extensions/redash-dummy/redash_dummy.egg-info/SOURCES.txt
+++ /dev/null
@@ -1,12 +0,0 @@
-MANIFEST.in
-README.md
-setup.py
-redash_dummy/__init__.py
-redash_dummy/extension.py
-redash_dummy/jobs.py
-redash_dummy.egg-info/PKG-INFO
-redash_dummy.egg-info/SOURCES.txt
-redash_dummy.egg-info/dependency_links.txt
-redash_dummy.egg-info/entry_points.txt
-redash_dummy.egg-info/top_level.txt
-redash_dummy/bundle/WideFooter.jsx
\ No newline at end of file
diff --git a/tests/extensions/redash-dummy/redash_dummy.egg-info/dependency_links.txt b/tests/extensions/redash-dummy/redash_dummy.egg-info/dependency_links.txt
deleted file mode 100644
index 8b13789179..0000000000
--- a/tests/extensions/redash-dummy/redash_dummy.egg-info/dependency_links.txt
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/tests/extensions/redash-dummy/redash_dummy.egg-info/entry_points.txt b/tests/extensions/redash-dummy/redash_dummy.egg-info/entry_points.txt
deleted file mode 100644
index f6b2aed61e..0000000000
--- a/tests/extensions/redash-dummy/redash_dummy.egg-info/entry_points.txt
+++ /dev/null
@@ -1,13 +0,0 @@
-[redash.bundles]
-wide_footer = redash_dummy
-
-[redash.extensions]
-assertive_extension = redash_dummy.extension:assertive_extension
-non_callable_extension = redash_dummy.extension:module_attribute
-not_findable_extension = redash_dummy.extension:missing_attribute
-not_importable_extension = missing_extension_module:extension
-working_extension = redash_dummy.extension:extension
-
-[redash.periodic_jobs]
-dummy_periodic_job = redash_dummy.jobs:periodic_job
-
diff --git a/tests/extensions/redash-dummy/redash_dummy.egg-info/top_level.txt b/tests/extensions/redash-dummy/redash_dummy.egg-info/top_level.txt
deleted file mode 100644
index 442d316537..0000000000
--- a/tests/extensions/redash-dummy/redash_dummy.egg-info/top_level.txt
+++ /dev/null
@@ -1 +0,0 @@
-redash_dummy
diff --git a/tests/extensions/redash-dummy/redash_dummy/__init__.py b/tests/extensions/redash-dummy/redash_dummy/__init__.py
deleted file mode 100644
index e69de29bb2..0000000000
diff --git a/tests/extensions/redash-dummy/redash_dummy/bundle/WideFooter.jsx b/tests/extensions/redash-dummy/redash_dummy/bundle/WideFooter.jsx
deleted file mode 100644
index f735ed1e03..0000000000
--- a/tests/extensions/redash-dummy/redash_dummy/bundle/WideFooter.jsx
+++ /dev/null
@@ -1,9 +0,0 @@
-import React from "react";
-
-export default function WideFooter() {
-  return (
-    <div>
-      This is a wide footer
-    </div>
-  );
-}
diff --git a/tests/extensions/redash-dummy/redash_dummy/extension.py b/tests/extensions/redash-dummy/redash_dummy/extension.py
deleted file mode 100644
index 28145ebc17..0000000000
--- a/tests/extensions/redash-dummy/redash_dummy/extension.py
+++ /dev/null
@@ -1,11 +0,0 @@
-module_attribute = "hello!"
-
-
-def extension(app):
-    """This extension will work"""
-    return "extension loaded"
-
-
-def assertive_extension(app):
-    """This extension won't work"""
-    assert False
diff --git a/tests/extensions/redash-dummy/redash_dummy/jobs.py b/tests/extensions/redash-dummy/redash_dummy/jobs.py
deleted file mode 100644
index 834cdc8e99..0000000000
--- a/tests/extensions/redash-dummy/redash_dummy/jobs.py
+++ /dev/null
@@ -1,14 +0,0 @@
-from datetime import timedelta
-
-
-def job_callback():
-    return "result"
-
-
-def periodic_job(*args, **kwargs):
-    """This periodic job will successfully load"""
-    return {
-        "func": job_callback,
-        "timeout": 60,
-        "interval": timedelta(minutes=1),
-    }
diff --git a/tests/extensions/redash-dummy/setup.py b/tests/extensions/redash-dummy/setup.py
deleted file mode 100644
index 8d90587b0c..0000000000
--- a/tests/extensions/redash-dummy/setup.py
+++ /dev/null
@@ -1,25 +0,0 @@
-from setuptools import setup, find_packages
-
-
-setup(
-    name="redash-dummy",
-    version="0.2",
-    description="Redash extensions for testing",
-    author="Redash authors",
-    license="MIT",
-    packages=find_packages(),
-    include_package_data=True,
-    entry_points={
-        "redash.extensions": [
-            "working_extension = redash_dummy.extension:extension",
-            "non_callable_extension = redash_dummy.extension:module_attribute",
-            "not_findable_extension = redash_dummy.extension:missing_attribute",
-            "not_importable_extension = missing_extension_module:extension",
-            "assertive_extension = redash_dummy.extension:assertive_extension",
-        ],
-        "redash.periodic_jobs": ["dummy_periodic_job = redash_dummy.jobs:periodic_job"],
-        "redash.bundles": [
-            "wide_footer = redash_dummy",
-        ],
-    },
-)
diff --git a/tests/extensions/test_extensions.py b/tests/extensions/test_extensions.py
deleted file mode 100644
index fa955511ac..0000000000
--- a/tests/extensions/test_extensions.py
+++ /dev/null
@@ -1,79 +0,0 @@
-import logging
-import shutil
-import subprocess
-import sys
-from pathlib import Path
-
-from redash import extensions
-from redash.tasks import periodic_job_definitions
-from tests import BaseTestCase
-
-logger = logging.getLogger(__name__)
-dummy_extension = "redash-dummy"
-
-this_dir = Path(__file__).parent.resolve()
-app_dir = this_dir.parent.parent
-dummy_path = str(this_dir / dummy_extension)
-test_bundle = (
-    app_dir / "client" / "app" / "extensions" / "wide_footer" / "WideFooter.jsx"
-)
-
-
-class TestExtensions(BaseTestCase):
-    @classmethod
-    def setUpClass(cls):
-        sys.path.insert(0, dummy_path)
-
-    @classmethod
-    def tearDownClass(cls):
-        sys.path.remove(dummy_path)
-
-    def test_working_extension(self):
-        self.assertIn("working_extension", extensions.extensions.keys())
-        self.assertEqual(
-            extensions.extensions.get("working_extension"), "extension loaded"
-        )
-
-    def test_assertive_extension(self):
-        self.assertNotIn("assertive_extension", extensions.extensions.keys())
-
-    def test_not_findable_extension(self):
-        self.assertNotIn("not_findable_extension", extensions.extensions.keys())
-
-    def test_not_importable_extension(self):
-        self.assertNotIn("not_importable_extension", extensions.extensions.keys())
-
-    def test_non_callable_extension(self):
-        self.assertNotIn("non_callable_extension", extensions.extensions.keys())
-
-    def test_dummy_periodic_task(self):
-        # need to load the periodic tasks manually since this isn't
-        # done automatically on test suite start but only part of
-        # the worker configuration
-        extensions.load_periodic_jobs(logger)
-        self.assertIn("dummy_periodic_job", extensions.periodic_jobs.keys())
-
-    def test_dummy_periodic_task_definitions(self):
-        jobs = periodic_job_definitions()
-        from redash_dummy.jobs import job_callback
-
-        self.assertIn(job_callback, [job.get("func", None) for job in jobs])
-
-
-class TestBundles(BaseTestCase):
-    @classmethod
-    def setUpClass(cls):
-        # Install the redash-dummy package temporarily using pip
-        # in the user's local site package directory under ~/.local/
-        subprocess.call(["pip", "install", "--user", dummy_path])
-
-    @classmethod
-    def tearDownClass(cls):
-        subprocess.call(["pip", "uninstall", "-y", "redash-dummy"])
-
-    def test_bundle_extensions(self):
-        # cleaning up after running bundle-extensions again
-        self.addCleanup(lambda: shutil.rmtree(test_bundle.parent))
-        assert not test_bundle.exists()
-        subprocess.run(str(app_dir / "bin" / "bundle-extensions"), check=True)
-        assert test_bundle.exists()