Add-ons
To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
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Choose from thousands of extra features and styles to make Firefox your own.
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Add-ons Button
Opens the Add-ons window to perform tasks on your installed Extensions, Themes, Plug-ins and Language packs.
Link Properties Plus
Requires Restart
Provides extended link properties: size of linked file, last modified time, etc.
Show Password On Input
Requires Restart
Gives an option to show the master password on input
Image Zoom (ugly fixes)
Old Default Image Style
Restores the default image style used for top-level images in previous versions of Firefox.
Notepad (QuickFox)
Perfect View
Image viewer with smooth dynamic zoom, pan and rotate. View slide shows of images or files and capture page elements and tab content. Apply image filters. Save images in various formats.
IE Tab + (FF 8+, 7, 6, 5, 4, 3.6, 3.5, SeaMonkey)
Requires Restart
IE Tab + is an enhanced version of IE Tab. It supports FF 3.5 or greater, integrates IE Tab with Adblock Plus in the IE Tab engine, and synchronizes cookies between IE and Firefox. You can easily import settings from the original IE Tab into IE Tab +
Profile Buttons
A button to be able to open the profile folder, along with two buttons to create profiles, and also switch the current profile.
Tab Numbers
No Resource URI Leak
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
Rikaichan Japanese-English Dictionary File
Requires Restart
This is a dictionary file add-on for the Rikaichan extension.
Remote XUL Manager
Manages the Remote XUL whitelist to allow websites and local files to load XUL content. For versions compatible with Firefox 41 and lower, see All Versions page below.
Copy Urls Expert
Requires Restart
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.
Trueblock Plus
Requires Restart
Trueblock Plus is a fork of the Adblock Plus extension for blocking unwanted advertisements on the web. This fork provides the exact same features as Adblock plus, with the unpopular, unwanted "acceptable ads" (non-)feature turned off by default.
Version Number in Add-ons Manager
[Restartless] [e10s Compatible]
Easily viewable version info in the Add-ons Manager on Firefox/Thunderbird 41.0 - 56.*
Also restores the add-on version number on Firefox/Thunderbird 41.0 - 56.*.
Restartless Restart
This 15KB restartless add-on will add a "File" -> "Restart" menu item and a ctrl/cmd + alt + r hotkey to restart Firefox or Seamonkey.
RequestPolicy
Requires Restart
Be in control of which cross-site requests are allowed. Improve the privacy of your browsing by not letting other sites know your browsing habits. Secure yourself from Cross-Site Request Forgery (CSRF) and other attacks.
Extension List Dumper 2
Requires Restart
This extension adds a button ("Dump list") to the Add-ons window. When this button is pressed, a new window is opened with the list of installed extensions, themes or plugins...
To create your own collections, you must have a Mozilla Add-ons account.
