Should Be Built Into Firefox

by Firebreathing

37 Add-ons in this Collection

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 336 reviews

385 users

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

FireFTP by Mime Čuvalo

Rated 4 out of 5 stars 1,067 reviews

626 users

FireFTP is a free, secure, cross-platform FTP/SFTP client for Waterfox which provides easy and intuitive access to FTP/SFTP servers.

Check out my new project, FireSSH!

HttpFox by Martin Theimer

Rated 4 out of 5 stars 217 reviews

38 users

An HTTP analyzer addon for Firefox

Menu Wizard by Oleksandr

Rated 5 out of 5 stars 252 reviews

1,906 users

Customize menus : Helps removing, moving and renaming menus and menu items
Colorize important menu for ease of use! (use Style (CSS))
Change or disable any of used keyboard shortcuts
Support: Firefox, Thunderbird and SeaMonkey

Download Status Bar by Szalgiris

Rated 5 out of 5 stars 437 reviews

272 users

If you are the kind of person who likes to have total control over every aspect of your downloads, "Download Status Bar" is the add-on you are looking for.

Mozilla Archive Format, with MHT and Faithful Save by Christopher Ottley, Paolo Amadini

Rated 5 out of 5 stars 359 reviews

133 users

— 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!

Live HTTP Headers (clone) by Earthling

Rated 4 out of 5 stars 17 reviews

5 users

View HTTP headers of a page and while browsing.

This is an unofficial "Live HTTP headers" clone, mainly to fix the Replay feature!

RefControl by James Abbatiello

Rated 4 out of 5 stars 180 reviews

41 users

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

Dorando keyconfig by trlkly, Jonathan Kamens

Rated 5 out of 5 stars 65 reviews

1,055 users

A modified Dorando's addon to rebind keyboard shortcuts. It is designed to be a drop-in replacement, keeping your old settings. (See details for upgrade instructions.)

As of version 2016.2, Custom keys (using custom JavaScript) work again!

Copy Urls Expert by Kashif Iqbal Khan

Rated 4 out of 5 stars 87 reviews

40 users

Copy multiple urls (links) to clipboard. Provides options to copy urls of all opened tabs and urls in selected text. You can customize the format of copied urls. You can also open multiple links from clipboard.

DOM Inspector by SeaMonkey Council

Rated 5 out of 5 stars 78 reviews

27,996 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.

Private Tab by Infocatcher

Rated 5 out of 5 stars 312 reviews

188 users

Adds private tabs.

Custom Buttons by Yan, cubegm, others

Rated 4 out of 5 stars 125 reviews

112 users

Gives a possibility to create custom toolbarbuttons...

No Resource URI Leak by Desktopd Collaboration, nord-stream

Rated 4 out of 5 stars 31 reviews

26 users

Deny resource:// access to Web content: We fill the hole to defend against fingerprinting. Very important to Firefox privacy. A direct workaround for bugzil.la/863246

Add-ons Manager Context Menu by Zulkarnain K.

Rated 5 out of 5 stars 49 reviews

122 users

Add more items to Add-ons Manager context menu.
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