[Bug 2033988] Re: Firefox Snap update breaks dark themes

[Little Girl]

TEMPORARY WORK-AROUND:

It was suggested to me that perhaps creating a new Firefox profile would
solve the issue. I tried that and it didn't, so this isn't a profile
issue.

Although the issue disappears when I create a new *Kubuntu* user, that's
not a solution, since creating new users when something goes wrong would
cause a lot of work in copying everything over and getting everything
set up and customized for that new user just the way you like it each
time. I can't imagine possibly needing to do that any time there's a
Firefox Snap update. Besides, nothing changed in my Kubuntu
configuration to suddenly cause this issue. What happened to cause the
issue was me choosing to allow the Firefox Snap to update, which changed
something that causes Firefox to misbehave.

For the time being, I have a clumsy two-part work-around that at least
gives me access to all the features in Firefox:

1. I *must* use a light Firefox theme so that I can see the contents of
the application menu and the contents of the toolbar folders.

2. That doesn't, however, make it so that I can see the contents of the
bookmark manager. To do that, I must *also* edit the
~/.config/gtk-3.0/gtk.css file and set the *window* identifier's
*background-color* property value to *inherit*.

The *window* identifier's *background-color* property value cannot,
however, be left that way on my machine because the Claws Mail and Geany
and Zim programs have some errors in their code that cause Claws Mail
and Geany to have some black artifacting and Zim to have transparent
artifacting that shows what's behind the window through the program.

As a result, that property cannot remain that way when I'm not actively
managing my Firefox bookmarks. It can't just be disabled either, though,
because that causes the Firefox Snap's tooltips to be black text on a
black background, making them impossible to read, so, for instance, you
can't hover over a link and see where it will take you. Instead, its
value must be changed to a color lighter than black.

It's not a solution, but at least it's a work-around. The way my Firefox
currently runs, I'm forced to always use a light theme (see above)
despite my preference for a dark theme, and I must edit the gtk.css file
every time before and after managing my bookmarks (see above). This is
far from ideal and wasn't necessary before updating to Firefox 117.0 and
is still necessary in Firefox 117.0.1. I'm providing this information,
though, in case anyone else runs into this issue and wants to be able to
see the contents of their menu folders and to manage their bookmarks.

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https://bugs.launchpad.net/bugs/2033988

Title:
  Firefox Snap update breaks dark themes

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