favorites
my all time favorites
- 10
- Add-ons
- imoz
- Creator
- May 21, 2021
- Last updated
208,115 users
3,796 users
Web Developer
The Web Developer extension adds various web developer tools to the browser.
Rated 4.3 out of 5chrispederick
92,762 users
NoScript Security Suite
The best security you can get in a web browser! Allow potentially malicious web content to run only from sites you trust. Protect yourself against XSS other web security exploits.
Rated 4.4 out of 5Giorgio Maone
305,969 users
Nightly Tester Tools
Nightly Tester Tools (NTT) is an add-on for aiding testers of Nightly builds of Mozilla apps including Firefox.
Rated 3.8 out of 5Automation Development
1,648 users
Greasemonkey
Customize the way a web page displays or behaves, by using small bits of JavaScript.
Rated 4.2 out of 5Anthony Lieuallen
197,737 users
213,751 users
Video DownloadHelper
The easy way to download and convert Web videos from hundreds of YouTube-like sites.
Rated 4.3 out of 5mig
1,968,968 users
ColorZilla
Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...
Rated 3.9 out of 5Alex Sirota
150,904 users
Adblock Plus
One of the most popular free ad blockers for Firefox. Block annoying ads on sites like Facebook, YouTube and all other websites. Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).
Rated 4.4 out of 5Adblock Plus
3,839,848 users