To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!Close
Welcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.Close
- Any Firefox
- Firefox 47.0
- Firefox 46.0
- Firefox 45.0
- Firefox 44.0
- Firefox 43.0
- Firefox 39.0
- Firefox 30.0
- Firefox 20.0
467 matching results
Search Results for tag "jetpack"
jspanel No Restart
Run javscript (or html) code in the context of a webpage
Tanaguru Contrast-Finder No Restart
Accelerate use of Contrast-Finder to find good colors for contrasts in web accessibility (a11y).
Codecov Extension No Restart
Overlay Coverage reports in Github, Bitbucket and Gitlab
eCalculator No Restart
A calculator in a popup window. Large integer, high-precision decimal real, various operators and functions are supported. Especially useful for programmers with decimal, hex, binary integers, and bitwise/logical operations.
Simple Script Loader No Restart
A very simple add-on for load script file on-the-fly.
Support to load script file when page ready.
pesticide No Restart
Cascading Style Sheets can be tricky. Placing an outline on every element can help you figure out what is going on.
This extension inserts the Pesticide CSS into the current page, outlining each element to better see placement on the page.
Clear History by Threads No Restart
Delete browsing history records by threads. It does NOT work without the addon History in Threads
Kill Button No Restart
Say goodbye to unwanted elements in web pages
Convert any local or web image to standard or custom icon sizes with Data URI provided. Useful for making favicon, avatar etc. Also allows viewing/saving the favicon of websites.
Case Change Tool No Restart
Change Case As You Want in One Click
GTM Test Drive No Restart
Test Google Tag Manager before installing it on your website.
Notifier for GitHub No Restart
Displays your GitHub notifications unread count.
Shortest URL shortener ever No Restart
Shortest URL shortener ever shortens the current page's URL and copies it to the clipboard with a single click.
Browser Info No Restart
Simple add-on that gives you vital information about the browser. Useful when submitting issues etc. to Mozilla
Tabshot No Restart
Record Network Activity No Restart
This is an addon to record network activity (HTTP Request, Cookie Operation) for statistics.
Github Status Checker No Restart
It shows an icon (green, yellow, red) in your addon bar depending on the github.com status (checked from https://status.github.com/), including last update datetime. Click it to open https://status.github.com/ in a new tab to see more details.
french-press No Restart
Originz No Restart
A source viewer that enables you to view not only page's HTML source but also style sheets and scripts. It uses Prism syntax highlighter and it can beautify(unminify) the source code.