Extensions are small add-ons that add new functionality to Firefox. They can add anything from a toolbar button to a completely new feature. They allow the browser to be customized to fit the personal needs of each user if they need additional features, while keeping Firefox small to download.
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Subcategories 15
Related categories 2
Sites 31
Official add-ons repository from Mozilla organized by category. Includes extensions, themes, plugins and search tools.
Allows users to customize the browser's appearance on the fly.
It merges selected menus for the main menubar into a single menu.
It can open and preview archive files on-line ( RAR, ZIP and ISO CD image ) fetching the necessary portions without downloading the whole file.
iMacros scripts, bot and macros for Firefox.
Adds right-click access to Blogger's BlogThis popup.
A simple, straightforward Internet Relay Chat (IRC) client.
Gives you access to the extensive music library on Last.fm
A Firefox browser extension for WYSIWYG MathML editing. Site includes installation instructions, usage examples, FAQ, a discussion forum and links to resources.
Makes it possible to take screenshots of entire webpages. Includes editing and annotation tools. The basic version is free.
Combines address bar and progress bar, like Safari.
Enables replacing text fragments in web pages by defining a substitution list. Substitutions can be applied all at once or individually.
Automatically adds ingredients to your grocery list and shares recipes with the world.
Monitors and analyses all incoming and outgoing HTTP traffic between the browser and the web servers.
Adds free, secure and easy to use password management features to Firefox by connecting Firefox to KeePass Password Safe.
Allows you to move, edit, or create new <menu>, <menuitem>, and <menuseparator> elements within a <menubar>, <popup>, or the <tabbrowser>s context menu.
Allows Firefox to log in to a website with multiple accounts simultaneously.
Blocks all scripts on a page unless it is from a site whitelisted by the user.
Open and edit documents of several types directly in Firefox using online services, without needing any software to be installed.
Replaces and enhances Firefox's gopher support with a customizable interface and improved protocol support.
Tool for the on-line game Hattrick. Predicts skill sub-levels using TSI.
Controls HTTP referrers on a per receiving site basis.
Archived. Displays the brand of web servers in the status-bar.
Show and query the current IP Address in the statusbar.
A Smart way to find a word in a page, by searching for the most similar word.
Large set of buttons for Firefox and Thunderbird, like many tiny extensions rolled into one.
Notifies you when updates are available for installed extensions and themes. Quick access availability checking.
Adds a menu to switch the user agent of the browser.
Allow users to create and share custom styles for websites and user interface of Mozilla applications. Includes a collection of customized user styles and a forum.
Indicates whether site is untrustworthy for the WOT community.
Firefox extension to aid the collection, management, and use of research sources. Details of features, project news, discussion forums, and download.
Official add-ons repository from Mozilla organized by category. Includes extensions, themes, plugins and search tools.
A Smart way to find a word in a page, by searching for the most similar word.
Archived. Displays the brand of web servers in the status-bar.
Adds free, secure and easy to use password management features to Firefox by connecting Firefox to KeePass Password Safe.
Large set of buttons for Firefox and Thunderbird, like many tiny extensions rolled into one.
Open and edit documents of several types directly in Firefox using online services, without needing any software to be installed.
Allows Firefox to log in to a website with multiple accounts simultaneously.
Enables replacing text fragments in web pages by defining a substitution list. Substitutions can be applied all at once or individually.
Makes it possible to take screenshots of entire webpages. Includes editing and annotation tools. The basic version is free.
It merges selected menus for the main menubar into a single menu.
iMacros scripts, bot and macros for Firefox.
Allows you to move, edit, or create new <menu>, <menuitem>, and <menuseparator> elements within a <menubar>, <popup>, or the <tabbrowser>s context menu.
Gives you access to the extensive music library on Last.fm
Indicates whether site is untrustworthy for the WOT community.
Replaces and enhances Firefox's gopher support with a customizable interface and improved protocol support.
Automatically adds ingredients to your grocery list and shares recipes with the world.
Notifies you when updates are available for installed extensions and themes. Quick access availability checking.
Adds right-click access to Blogger's BlogThis popup.
Show and query the current IP Address in the statusbar.
A Firefox browser extension for WYSIWYG MathML editing. Site includes installation instructions, usage examples, FAQ, a discussion forum and links to resources.
Firefox extension to aid the collection, management, and use of research sources. Details of features, project news, discussion forums, and download.
It can open and preview archive files on-line ( RAR, ZIP and ISO CD image ) fetching the necessary portions without downloading the whole file.
Allow users to create and share custom styles for websites and user interface of Mozilla applications. Includes a collection of customized user styles and a forum.
Allows users to customize the browser's appearance on the fly.
Controls HTTP referrers on a per receiving site basis.
Monitors and analyses all incoming and outgoing HTTP traffic between the browser and the web servers.
Tool for the on-line game Hattrick. Predicts skill sub-levels using TSI.
Combines address bar and progress bar, like Safari.
Adds a menu to switch the user agent of the browser.
Blocks all scripts on a page unless it is from a site whitelisted by the user.
A simple, straightforward Internet Relay Chat (IRC) client.
Other languages 1
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October 28, 2023 at 5:45:07 UTC
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- Recently edited by cherel
- Recently edited by cherel