Firefox & Thunderbird classic minimal themes, Norwegian Adblock & Speed-up

I like having a clean and consistent user interface, and over time I have been tweaking the Firefox userChrome.css file to make things look "perfect". Here is the latest version for Firefox 126 and up (last tested on Firefox 134 on Windows 10). I have made the tabs smaller (in height), added background color to the tabs bar, more compact bookmarks sidebar, some tweaking to the url- and searchbars to give them equal compact look, and cleaned up the new search icons at the bottom.

Now this is how you add the userChrome.css file to your Firefox

• First, if you don't allready use Firefox, follow this link to read info and download the latest version: Firefox download
• Save userChrome.css to: "c:\Users\<username>\AppData\Roaming\Mozilla\Firefox\Profiles\<profile-id>.default\chrome\"
• From Firefox 69 on browser does not load userChrome.css by default. To enable loading you must do the following steps:

1. Type "about:config" in the adress-bar
2. Type "toolkit.legacyUserProfileCustomizations.stylesheets" in the search box
3. Set "toolkit.legacyUserProfileCustomizations.stylesheets" to "True"

• If the bookmarks are not showing in the sidebar (only "Unsorted Bookmarks" at the top) do as follows to expand the bookmarks:

1. Click "Unsorted Bookmarks" (or whatever at the top line)
2. Press "up arrow" (cursor up)
3. Press "right arrow" (cursor right)

Thunderbird classic theme - How to add the userChrome.css file to your Thunderbird

• First, if you don't allready use Thunderbird, follow this link to read info and download the latest version: Thunderbird download
• Save userChrome.css to: "c:\Users\<username>\AppData\Roaming\Thunderbird\Profiles\<profile-id>.default-esr\chrome\"
• Thunderbird does not load userChrome.css by default. To enable loading you must do the following steps:

1. Choose "Settings" and scroll down and click on "Config editor..."
2. Type "toolkit.legacyUserProfileCustomizations.stylesheets" in the search box
3. Set "toolkit.legacyUserProfileCustomizations.stylesheets" to "True"

MultiSearch - Search with two search-engines simultanously

• I have also made a search page that can search with multiple search engines. Click on this link to add MultiSearch.
• To manually add MultiSearch in your browser settings copy this URL: "https://www.osterud.name/search.html?q=%s"

Adblock extension and Norwegian Adblock filter list

• If you are tired of all those ads messing up pages and taking bandwidth I recommend the uBlock Origin extension.
• If you live in Norway you might want to add some extra user-defined filters for norwegian pages to filter more ads.
• These filters can also be used in Samsung Internet Browser with AdGuard Content Blocker on Android phones.

Firefox speed-up and other tricks and tweaks

• I have made a small compilation of speed-up tricks and other tricks and tweaks for Firefox in this user.js file.
• Save user.js to: "c:\Users\<username>\AppData\Roaming\Mozilla\Firefox\Profiles\<profile-id>.default\"