useful

by tommz

30 Add-ons in this Collection

NoScript Security Suite by Giorgio Maone

Rated 5 out of 5 stars 1,484 reviews

2,143,856 users

The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.

LastPass Password Manager by LastPass

Rated 4 out of 5 stars 1,210 reviews

333,099 users

LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 245 reviews

398,035 users

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

Evernote Web Clipper by Evernote

Rated 3 out of 5 stars 779 reviews

409,493 users

Use the Evernote Web Clipper to save things you see on the web into your Evernote account.

SQLite Manager by lazierthanthou

Rated 5 out of 5 stars 34 reviews

208,706 users

Manage any SQLite database on your computer.

FireGestures by Gomita

Rated 4 out of 5 stars 866 reviews

409,209 users

A customizable mouse gestures extension which enables to execute various commands and user scripts with six types of gestures.

Xmarks Sync by Xmarks Inc.

Rated 4 out of 5 stars 2,511 reviews

321,098 users

Xmarks is the #1 bookmarking and open tab add-on. Keep your bookmarks, and open tabs backed up and synchronized across computers and browsers. Mobile phones with Premium access. Utilize LastPass to sync passwords!

Personas Plus by Mozilla

Rated 3 out of 5 stars 952 reviews

410,411 users

Personas are free, easy-to-install "skins" for Firefox. Personas Plus extends that built-in functionality to give you even more control and easier access to new, popular, and your own favorite Personas.

IE Tab by PCMan, yuoo2k

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

ScrapBook by Gomita

Rated 4 out of 5 stars 840 reviews

173,803 users

Helps you to save Web pages and organize the collection.

Tree Style Tab by Piro (piro_or)

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Experimental

Rated 4 out of 5 stars 1,169 reviews

101,729 users

Show tabs like a tree.

RefControl by James Abbatiello

Rated 4 out of 5 stars 178 reviews

80,228 users

Control what gets sent as the HTTP Referer on a per-site basis.

Add to Search Bar by Dr. Evil

Rated 5 out of 5 stars 598 reviews

90,819 users

Make any pages' search functionality available in the Search Bar (or "search box")...

Shareaholic | share with Google, Facebook and more by The Shareaholic Team

Rated 4 out of 5 stars 257 reviews

15,026 users

Shareaholic is the easiest way to share & bookmark great content from anywhere on the web from one simple ALL-IN-ONE add-on. Works with Facebook, Twitter, Pinterest, Google, LinkedIn, E-mail and 200+ additional services.

DOM Inspector by SeaMonkey Council

Rated 5 out of 5 stars 61 reviews

140,659 users

DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.
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