Thunderbird 115 introduced a new look. I hate it. Not only does it no longer fit in with KDE Plasma, it lost functionality due to it’s new integrated search bar in the title bar.
So I went on a mission to fix it.
To restore the regular title bar:
Go into Settings > General > Language and uncheck the Hide system window titlebar
To remove search bar:
Toggle toolkit.legacyUserProfileCustomizations.stylesheets to true in Config Editor (bottom of Settings)
Find your profile directory via Help > Troubleshooting Information > Profile Directory (or about:profiles in same page)
This directory should have lots of files e.g. prefs.js and places.sqlite
Create directory chrome
Inside that folder, create a file named userChrome.css with the below content:
#unifiedToolbar {
display:none !important;
}
Restart Thunderbird
Enjoy!
the issue with hiding the system window toolbar is that it puts a border around the window buttons, which is inconsistent with other programs. kind of a shame they did this redesign, as get messages and new message are now lopsided and send gets more piority. it just looks like it was poorly put together in photoshop or something.
and i kinda see what they were going for this redesign but honestly it’s too much imo, it’s trying to make thunderbird something it’s not.
after all we chose thunderbird because of its oldschool look, now they’ve kinda ruined it. still going to be using it though.