Optimized Collection

by Kiera

38 Add-ons in this Collection

Adblock Plus by Eyeo

Rated 5 out of 5 stars 7,647 reviews

11,568,630 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 12,889 reviews

3,183,532 users

The easy way to download and convert Web videos from hundreds of YouTube-like sites.

Greasemonkey by Anthony Lieuallen

Rated 4 out of 5 stars 1,642 reviews

610,041 users

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

Web of Trust, MyWOT/WOT: Website Reputation Rating by WOT Services

Rated 4 out of 5 stars 1,536 reviews

229,696 users

Instantly know which websites to trust! WOT protects you while you browse, warning you against dangerous sites that host malware, phishing, and more.

Tab Mix Plus by onemen, Gary Reyes

Rated 4 out of 5 stars 3,018 reviews

396,939 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.

Element Hiding Helper for Adblock Plus by Felix Dahlke

Rated 5 out of 5 stars 471 reviews

206,895 users

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

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 216 reviews

58,534 users

View HTTP headers of a page and while browsing.

Session Manager by Michael Kraft

Rated 5 out of 5 stars 844 reviews

168,991 users

Session Manager saves and restores the state of all or some windows - either when you want it or automatically at startup and after crashes. It can also automatically save the state of open windows individually.

Nightly Tester Tools by Automation Development, Henrik Skupin, others

Nightly Tester Tools (NTT) is an add-on for aiding testers of Nightly builds of Mozilla apps including Firefox.

Update Scanner by sneakypete81

Rated 4 out of 5 stars 287 reviews

13,535 users

Monitors web pages for updates. Useful for websites that don't provide Atom or RSS feeds.

Canadian English Dictionary by Paul Schmiedge

Rated 4 out of 5 stars 80 reviews

31,733 users

For some reason, Mozilla doesn't have a Canadian localization team, but I know that even the British dictionary doesn't quite cut it for the truly patriotic.

Toolbar Buttons by Button Guy

Rated 4 out of 5 stars 355 reviews

15,234 users

Adds toolbar buttons to the customize toolbar window in several programs including Firefox, Thunderbird and SeaMonkey. Some of the buttons make commonly preformed actions quicker, others add new functionality.

Nuke Anything Enhanced by Patrick Abi Salloum

Allows you to hide almost anything in any page via context menu

Lazarus: Form Recovery by Seth Wagoner

Rated 4 out of 5 stars 489 reviews

4,860 users

Never lose anything you type into a web form again! Lazarus securely auto-saves all forms as you type, so after a crash, server timeout, or whatever, you can go back to the form, right click, "recover form", and breathe a sigh of relief.

Fasterfox Lite by Wips.com s.r.o.

Download Now

Experimental

Rated 4 out of 5 stars 240 reviews

28,019 users

Fasterfox Lite: Performance and network tweaks for Firefox, without the Enhanced Prefetching. This is a fork from the original "Fasterfox".
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