Add-ons
Interface Customisations
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xSidebar
Firefox style sidebars for SeaMonkey...
14 users
Most Popular See all »
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A system tray extension for Linux and Windows, allowing to set up custom icon, hiding to tray instead of closing, display the number of unread messages in mailing applications, and other features ...7,052 users -
Displays icon for user agent of received mails.5,314 users -
MinimizeToTray Reanimated is an application mainly dedicated to Thunderbird to allow its minimization in the systray in one click. It is the update of MinimizeToTray Revived, which is not maintained anymore since the recent versions of Thunderbird.5,148 users -
Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.2,286 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!1,888 users -
This extension enables true full screen mode in SeaMonkey for HTML5 video players, slide-shows, etc. and also for full screen invoked manually with the F11 key.1,726 users
Top Rated See all »
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Adds metadata and sortable tags to the password manager.30 users
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Hide title bar if window is maximized.
This add-on has been discontinued!
Legacy extensions support will be dropped in Firefox 57. If you interest in CSD on Linux, please track progress on https://bugzilla.mozilla.org/show_bug.cgi?id=1283299.10 users -
Restores the default image style used for top-level images in previous versions of Firefox.39 users
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This extension allows to open links in new tabs with right-click directly and using “long” left-click.
This is very useful for touchpads on notebooks and for mice without middle button.38 users -
F.B. Purity hides the ads, app spam and other annoying clutter from your facebook news feed, lets you increase the font size, change colours plus many more features and generally makes Facebook a lot less annoying to use.20 users
Recently Added See all »
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MinimizeToTray Reanimated is an application mainly dedicated to Thunderbird to allow its minimization in the systray in one click. It is the update of MinimizeToTray Revived, which is not maintained anymore since the recent versions of Thunderbird.5,148 users
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Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.2,286 users
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Makes every page to have light text on dark background (exact colors are customizable)
Firefox version is here: https://addons.mozilla.org/firefox/addon/dark-background-light-text/86 users -
Flexible Sidebar allows to change sidebar width by dragging the handles.22 users
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Tab bar on the side of the window for SeaMonkey.50 users -
A full featured color selector tool, to work with colors, and easily find the colors you want.
很方便色取色器，可以页面上直接取色，然后再对颜色进行进一步的调整9 users
See all 127 extensions in Interface Customisations »
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