Must-have

by Gregoric

10 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 5,654 reviews

13,647,436 users

Blocks annoying video ads on YouTube, Facebook ads, banners and much more.

Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 1,159 reviews

872,209 users

Customize the way a web page displays or behaves, by using small bits of JavaScript.

Tab Mix Plus by onemen, Gary Reyes

Rated 4 out of 5 stars 2,420 reviews

568,302 users

Tab Mix Plus enhances Firefox's tab browsing capabilities. It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more. It also includes a full-featured session manager.

Stylish by userstyles.org

Rated 4 out of 5 stars 877 reviews

321,055 users

Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Tumblr, and many, many other sites. You can even customize Firefox and other programs themselves.

Classic Theme Restorer by Aris

Rated 5 out of 5 stars 1,083 reviews

322,299 users

Squared tabs, appmenu, add-on bar, small button view and many more 'old' features for Firefox 29-56 (Windows / MacOSX / Linux).

Release builds
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Blur by Abine, Inc., the online privacy company

Protect your Passwords, Payments, and Privacy.

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 362 reviews

92,465 users

Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.

Rainbow Color Tools by Heather Arthur

Rated 5 out of 5 stars 96 reviews

18,013 users

Color tools for web development.

Color picker and eyedropper + saving colors and trying out colors with drag and drop.

Omnibar by Ajit K

Rated 4 out of 5 stars 431 reviews

15,817 users

Integrates location bar and search bar into one. Shows search and url suggestions. Quickly switch search engine using search keywords. Provides different auto-complete popup styles for compact displays.

Google Shortcuts - All Google Services at a glance by Soeren Rinne, Carlos Jeurissen

Rated 4 out of 5 stars 345 reviews

16,933 users

Display all Google services as buttons or as a space-saving dropdown menu next to your address bar. Reach services like Gmail, Google reader, Google maps, Google calendar, and many more in a single click from your browser.

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