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BlockSite Requires Restart

BlockSite is an extension, which automagically blocks websites of your choice. Additionally, this extension will disable all hyperlinks to these websites, by just displaying the link text without the clicking functionality.

Rated 3 out of 5 stars (556)
210,413 users

SQLite Manager Requires Restart

Manage any SQLite database on your computer.

Rated 4 out of 5 stars (60)
208,169 users

Self-Destructing Cookies

Fix the web. 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.

Rated 4 out of 5 stars (544)
201,875 users

IE Tab Requires Restart

IE Tab - an extension from Taiwan, features: Embedding Internet Explorer in tabs of Mozilla/Firefox...

Rated 4 out of 5 stars (1,205)
200,733 users

xThunder Requires Restart

Manage popular downloaders (Windows, Linux, Mac) and support special links of thunder,flashget,qqdl,ed2k,magnet,fs2you.

Rated 5 out of 5 stars (88)
194,105 users

Public Fox Requires Restart

Block downloads, lock down bookmarks/addons/downloads with a password.

Rated 4 out of 5 stars (194)
188,595 users

Random Agent Spoofer

Rotates complete browser profiles ( from real browsers / devices ) at a user defined time interval. It includes many extra privacy enhancing options

Rated 5 out of 5 stars (138)
188,235 users

NoSquint Requires Restart

NoSquint is no longer maintained. :(

Rated 5 out of 5 stars (511)
185,666 users

Blur Featured

Protect your Passwords, Payments, and Privacy.

Rated 4 out of 5 stars (794)
184,602 users

All-in-One Sidebar Requires Restart

AiOS lets you open various windows as sidebar panels, and quickly switch between them. So it put an end to the window chaos! In addition to bookmarks and history it opens dialogues such as downloads, add-ons and more in the sidebar.

Rated 5 out of 5 stars (1,555)
180,949 users

µBlock

NOTE: Users should be aware that this add-on represents an older fork. The original developer of uBlock is continuing to actively develop the newer fork uBlock Origin.

Rated 4 out of 5 stars (225)
177,416 users

Speed Dial [FVD] - New Tab Page, Sync... Requires Restart

FVD Speed Dial - Speed dial button, online synchronization, new tab start page, bookmark organization, custom backgrounds, custom dials, groups, mobile apps, most-visited dials.

Rated 5 out of 5 stars (2,171)
172,154 users

SaveFrom.net helper all-in-1 / youtube downloader

SaveFrom.net helper will enable you to download files from YouTube.com, FaceBook.com, Vimeo.com, Daylimotion.com, VK.com, Odnoklassnoki.ru, Soundcloud.com and more than 40 other just in one click.

Rated 4 out of 5 stars (248)
170,767 users

RESTClient, a debugger for RESTful web services. Requires Restart

Notice: some important features (XML indentation and load old saved requests) are missing in version 2.0.0, please update to version 2.0.1.

Please follow the link ("View other versions") below To install version 2.0.1.

Rated 4 out of 5 stars (102)
168,010 users

Mozilla Archive Format, with MHT and Faithful Save Requires Restart

— Open web pages saved with Internet Explorer or other browsers (MHT)
— Save many tabs, video and audio reliably, in a single ZIP file (MAFF)
— Return to the original site you saved a page from, and more!

Rated 4 out of 5 stars (321)
167,680 users

ReloadEvery Requires Restart

Reloads web pages every so many seconds or minutes. The function is accessible via the context menu (menu you get when you right click on a web page) or via tab context menu (right click on the tab)

Rated 4 out of 5 stars (716)
159,741 users

ScrapBook Requires Restart

Helps you to save Web pages and organize the collection.

Rated 4 out of 5 stars (878)
154,467 users

Browsec VPN

Encrypts traffic and unlocks sites.

Facebook closed by an overzealous sysadmin? Browsec to the rescue!

Browsec encrypts your traffic and routes it through our secure cloud. No one will be able to identify, track you or sniff your traffic.

Rated 4 out of 5 stars (118)
151,792 users

Live HTTP Headers Requires Restart

View HTTP headers of a page and while browsing.

Rated 4 out of 5 stars (172)
149,817 users

Status-4-Evar Requires Restart

Status bar widgets and progress indicators for Firefox 4+

Rated 5 out of 5 stars (556)
146,650 users