Repository: govuk-browser-extension
Chrome and Firefox extension for developers working on GOV.UK.
README
Allows easy switching between the different GOV.UK environments and content representations. Inspired by the govuk-bookmarklets.

Installation
The extension is downloadable on the Chrome web store and AMO for Firefox.
If you don’t want to install from your browser’s web store for security reasons, you can install a local non-self updating copy.
For Chrome:
-
Download the source from GitHub and unzip.
- Visit chrome://extensions in your browser.
- Ensure that the Developer mode checkbox in the top right-hand corner is checked.
- Click
Load unpacked extension…
to pop up a file selection dialog.
- Navigate to
src
in the extension directory, and select it.
- Visit any page on GOV.UK.
Source: Getting Started: Building a Chrome Extension.
For Firefox:
Extensions installed using the following instructions are only active while Firefox
is open and are removed on exit. Permanently-active extensions can be only be
installed from packages signed by Mozilla.
-
Download the source from GitHub and unzip.
- Visit about:debugging in your browser.
- Click
Load Temporary Add-on
to pop up a file selection dialog.
- Navigate to
src
in the extension directory, and select manifest.json
.
- Visit any page on GOV.UK.
Source: Temporary installation in Firefox.
Running the tests
You’ll need jasmine-browser, which you can set up with:
$ npm install
You can then run the tests with:
$ npm test
This will start a server and run the tests in a browser (chrome by default).
If you want the browser to remain open with the test results, you can use
$ npx jasmine-browser-runner serve
..then navigate to http://localhost:8888/
Releasing the extension
When a new version is merged to main
, a new version of the extension is automatically packaged up and published to
Firefox Add-ons and to Chrome web store. See releasing.md
License
MIT License