This is some styles to change Firefox (and sometimes SeaMonkey) appearance
- Put content of *.css file into userChrome.css to change browser interface or userContent.css to change tab contents (but be careful with @namespace entries)
- or just use Stylish extension
Some fixes for about:newtab page
Show counter for total/enabled/disabled add-ons in top left corner of Add-ons Manager
Hide warnings about disabled compatibility and update security checking from Add-ons Manager
Limit release notes height in Add-ons Manager
Tabs-like categories in Add-ons Manager
Always show forward button in Australis interface/theme
Some styles related to bookmarks
Compact style for Brief Firefox extension
Compact styles for built-in Firefox download panel and other downloads lists
Hide menu items from Download Panel Tweaker extension
Downloads: show NN% label after each progress bar
Reorder items inside FindBar in Firefox 25+
Some fixes for “identity box” (icon before location bar)
Stylize obsolete <popup> node like <menupopup>
Some UI tweaks for Private Tab extension
Show placeholders in place of missing and not loaded images
Some tweaks for source editor component (used in Scratchpad and other developer tools)
Use OS styles for tabs
Reduce height of XUL tree rows in Firefox 25+
Compact vertical tabs added using Tree Style Tab extension
Collapse sidebar on habrahabr.ru and show only on hover