[Linux][Fx74] Glitch when titlebar is hidden

[GaVenga]

Firefox 74 and custom_css_for_fx_v3.0.3v2 issue (LINUX):
@import "./css/tabs/tabs_below_navigation_toolbar_fx72.css"; /**/
AND
Titlebar hidden results in truncating the min/max/close symbols.
Without tabs below navigation toolbar everything is o.K.
(On Windoofs 10 everything works with titlebar hidden...)

[Aris-t2]

Post a screenshot.

[Aris-t2]

I might have found what is causing this in Fx 74+ on Linux.

Test custom_css_for_fx_v3.0.3v3.zip and use the "pref" required for Fx74+.

[GaVenga]

Test custom_css_for_fx_v3.0.3v3.zip and use the "pref" required for Fx74+.

Works perfect! Thank You so much.
BTW: I was not able to upload a screenshot in .png or .jpg with Firefox 74
what is the trick? I get:
"Something went really wrong, and we can't process that file."
Same in chromium 80.0.3987.132 - here the upload does not work and i cannot edit the comment?!
(the failed upload is not even commented in chromium)

[GaVenga]

test on Windows 10 pro and Firefox 74.0:
File upload screenshot xx.png
does not work

[Aris-t2]

I just drag&drop jpg/png files into my post below the text. You can also copy your screenshot to clipboard and paste it anywhere within your text using Ctrl+V.

[GaVenga]

Test on Win 10 pro trying ctrl + V =>

[Aris-t2]

That did not work. Image code within the post would look like this:

![image](https://user-images.githubusercontent.com/1234567/id.png)

[GaVenga]

And my fault was: Umatrix in both, windo and Linux
Problem solved - oh me stupid...

something like "github-production-user-asset-xxx" may not be blocked