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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Linky
eCleaner
Requires Restart
Clears preferences left by extensions after uninstallation
Closy
Requires Restart
Provides close all blank/duplicate tabs and Close all tabs to the left/right plus many other options.
XML Digital Signature Tool
Requires Restart
XML Digital Signature Tool is a Firefox add-on for processing Digital Signature in XML documents
(Please read the installation instruction in the "Developer Comments" section before downloading)
TreeStat
POW -- Plain Old Webserver
Requires Restart
Turn the web on its head with the Plain Old Webserver (POW), which adds a server to your browser.
Key Manager
Requires Restart
KeyManager Tool: Firefox Add-on for Key Generation, Certificate Enrollment, CRL Signing, and Identity and Authority Delegation
View Dependencies
Requires Restart
View Dependencies adds a tab to the Page Info window, in which it lists all the files which were loaded to show the current page.
Link Properties Plus
Requires Restart
Provides extended link properties: size of linked file, last modified time, etc.
System Monitor
Requires Restart
Provides CPU usage and memory usage graphs on the toolbar.
FavLoc
Requires Restart
FavLoc allows you to set folders as "favorite locations" to which you can easily download. FavLoc menus will appear on the File menu (for saving pages), the context menu (for saving images and links), and on the download...
RequestPolicy v0.5 Legacy
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.
about:addons-memory 2016
techblocker
XHTML Mobile Profile
Requires Restart
Firefox does not natively support the mime-type application/vnd.wap.xhtml+xml. This is one of the possible mime-types for XHTML Mobile Profile. This addon adds support for this mime-type.
docked JS-Console
Requires Restart
docks the JS-Console to the Bottom of the Browser
feel free to have a look at the source (see below) and suggest enhancements (borstel33 web de , Subject: docked JS-Console)
MR Tech About:About
Requires Restart
Adds the following "about:" options to the Help menu
Colorific
Colorize entire web pages. Configure themes using sliders and drag-and-drop. Set domain preferences for automatic coloration.
Validaty
Requires Restart
One Click Validator. Provides you a button to validate a page using a validator like w3c or another user defined
To create your own collections, you must have a Mozilla Add-ons account.
