Modern-ThunderBird
A userChrome.css theme to make Thunderbird (78+) resemble Firefox 89+
Updated tabs and toolbar
Updated dropdown menus
Works with most themes other than the default light theme.
Installation
-
Download the file named userChrome.css from this repo.
-
Open Preferences and scroll all the way to the bottom of the General tab.
-
Click
Config Editor... -
A dialog will warn you, but ignore it, press the
I accept the risk!button. -
Enable the following flags by right clicking and selecting toggle:
toolkit.legacyUserProfileCustomizations.stylesheets
-
Go to your Thunderbird profile.
- Linux -
$HOME/.thunderbird/XXXXXXX.default-XXXXXX/. - Windows 10 -
C:\Users\<USERNAME>\AppData\Roaming\Thunderbird\Profiles\XXXXXXX.default-XXXXXX. - macOS -
Users/<USERNAME>/Library/Application Support/Thunderbird/Profiles/XXXXXXX.default-XXXXXXX.
- Linux -
-
Create a folder and name it
chrome, then copyuserChrome.cssfrom step 1 tochromefolder. -
Restart Thunderbird.
Shadow on tab is missing
Hi, this css of thunderbird is grate, but in firefox there is a light shadow in selected tab, may be you can add this style in the userChrome.css
.tab-background[selected="true"] { box-shadow: 0px 0px 4px #888888; }
Different MacOS Installation Location
This is really well done, thank you for creating some continuity between Firefox and Tunderbird.
For me on MacOS, the location that I had to place
chrome/userChrome.cssin wasUsers/<USERNAME>/Library/Thunderbird/Profiles/XXXXXXX.default-XXXXXXXnotUsers/<USERNAME>/Library/Application Support/Thunderbird/Profiles/XXXXXXX.default-XXXXXXX.