Modern-ThunderBird
A userChrome.css theme to make thunderbird resemble Firefox 89+
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.css
from step 1 tochrome
folder. -
Restart Thunderbird.