Power User Pack
Collection of Add-ons for power user, sys admin, developer, surfer etc. Most powerful add-ons which would change interface to better and tidy, add some cool functionality. No funky sh*t!
- 15
- Add-ons
- IDenis
- Creator
- 21 May 2021
- Last updated
Multiple Tab Handler
Allows you to select tabs by dragging and do something.
Rated 3.7 out of 5Piro (piro_or)
3,774 users
121,416 users
LastPass Password Manager
LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.
Rated 3.7 out of 5LastPass
548,212 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
1,642 users
205,593 users
Video DownloadHelper
The easy way to download and convert Web videos from hundreds of YouTube-like sites.
Rated 4.3 out of 5mig
1,959,331 users
Webmail Ad Blocker
Remove advertising clutter from your web-based email. Expand your viewable area by blocking and removing ads on the right-hand side of the screen when using Gmail, Hotmail, Outlook.com and Yahoo Mail.
Rated 4.4 out of 5Jason Savard
28,234 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
305,165 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
3,814,676 users
Web Developer
The Web Developer extension adds various web developer tools to the browser.
Rated 4.3 out of 5chrispederick
92,014 users
Flagfox
Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more...
Rated 4.6 out of 5Dave G
116,527 users
ColorZilla
Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...
Rated 3.9 out of 5Alex Sirota
149,387 users
Html Validator
HTML Validator is a Mozilla extension that adds HTML validation inside Firefox, Mozilla. The number of errors of a HTML page is seen on the form of an icon For Firefox 56, use 0.974 (see all versions below). For Firefox 57, see Web Extensions.
Rated 4.2 out of 5Marc Gueury
9,125 users
FoxyProxy Standard
FoxyProxy is an open-source, advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. No paid accounts are necessary; bring your own proxies or buy from any vendor. The original proxy tool, since 2006.
Rated 4 out of 5Eric
208,675 users
ActiveInbox for Gmail
Use Gmail to get things done. ActiveInbox turns Gmail into a GTD task manager, where your emails are your tasks. It lets you achieve inbox zero, never forget an important email, and move projects forward with ease.
Rated 3.4 out of 5Andy Mitchell
62 users