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Toggle Headers
This Thunderbird add-on allows users to toggle the message header with the H hotkey...
Headers Toggle
Headers Toggle is an extension which gives Thunderbird a keyboard shortcut (H) to change how headers are displayed....
View Headers Toggle Button
View Headers Toggle Button is a Thunderbird extension that which allows the to view all message headers....
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Scrolling headers
This Firefox add-on lets users align the top of the window to an element on the page...
Modify Headers
Allows you to add, modify and filter http request headers....
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Apache::Access::Headers
mod_perl HTTP header authorization module...
Live HTTP Headers
Live HTTP Headers is a Firefox extension that allows you to view HTTP headers of a page and while browsing....
SIMD Cross-platform headers
SIMD Cross-platform headers is a cross- platform, cross-compiler, cross CPU C/C++ header collection....
Live HTTP Headers for Firefox
Live HTTP Headers is a Firefox extension that allows you to view HTTP headers of a page and while brows......
Image Toggle
Disable the loading of images while browsing web pages...
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Color toggle
Toggles colors between two color profiles...
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Toggle animated GIFs
Toggle animation of GIF images using Ctrl+M in Mozilla Firefox...
Toggle nautilus addressbar
Easily copy the path in Nautilus...
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Toggle Cookies for Firefox
Just a button to toggle allowing/disallowing cookies globally...
Document Font Toggle
Enabled the "Allow pages to choose their own fonts" setting with this restartless add-on for ......
Toggle Private Browsing
Toggle Firefox's built-in private browsing mode with a toolbar or status bar button....
Auto Toggle Tabs
Auto Toggle Tabs adds an entry to the tools menu that allows to switch the tabs in a window automatically....
Toggle Word Wrap
Toggle Word Wrap toggles word wraping in Firefox or Thunderbird (PRE elements)....