Firefox Best Extensions

by bloginfo

37 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,193 reviews

18,586,319 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).

Video DownloadHelper by mig

Rated 4 out of 5 stars 4,151 reviews

6,397,039 users

The easy way to download and convert Web videos from hundreds of YouTube-like sites.
This works also for audio and picture galleries.

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,623 reviews

2,831,806 users

Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page...

Ghostery by Felix Shnir, José María Signanini

Rated 5 out of 5 stars 808 reviews

1,122,134 users

Protect your privacy. See who's tracking your web browsing and block them with Ghostery.

Element Hiding Helper for Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 362 reviews

989,338 users

Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.

iMacros for Firefox by iOpus

Rated 4 out of 5 stars 335 reviews

293,527 users

Automate Firefox. Record and replay repetitious work. If you love the Firefox web browser, but are tired of repetitive tasks like visiting the same sites every days, filling out forms, and remembering passwords, then iMacros for Firefox is the soluti...

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 195 reviews

449,303 users

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Lightbeam for Firefox by Mozilla

Rated 3 out of 5 stars 303 reviews

474,483 users

Lightbeam is a Firefox add-on that enables you to see the first and third party sites you interact with on the Web. Using interactive visualizations, Lightbeam shows you the relationships between these third parties and the sites you visit.

Disconnect by Disconnect

Rated 4 out of 5 stars 58 reviews

185,334 users

Make the web faster, more private, and more secure.

Self-Destructing Cookies by Ove

Rated 4 out of 5 stars 225 reviews

144,344 users

Cookies when you need them, not when others need them to track you - gets rid of a site's cookies and LocalStorage as soon as you close its tabs. Protects against trackers and zombie-cookies. Trustworthy services can be whitelisted.

SQLite Manager by lazierthanthou

Rated 5 out of 5 stars 52 reviews

208,812 users

Manage any SQLite database on your computer.

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 282 reviews

335,121 users

Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 133 reviews

219,849 users

View HTTP headers of a page and while browsing.

Theme Font & Size Changer by Baris Derin, Access Firefox Project

Rated 5 out of 5 stars 112 reviews

85,974 users

Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 303 reviews

166,855 users

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