Does anything show if you select the text (Ctrl+A: select all) in case you have dark text on dark background?

I cannot replicate your issue. see screenshot Did you try with Firefox in Troubleshoot Mode? https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode#w_how-to-start-firefox-in-4troubleshoot-modesf5safe-modesf

What security software are you running?

Does anything show if you select the text (Ctrl+A: select all) in case you have dark text on dark background?

Yes, the text does show up if I use ctrl-A

I do use dark mode but it hasn't been a problem.

UPDATE: I switched from dark to light mode in windows and it does not solve the problem.

I cannot replicate your issue. see screenshot Did you try with Firefox in Troubleshoot Mode? https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode#w_how-to-start-firefox-in-4troubleshoot-modesf5safe-modesf What security software are you running?

Same behaviour in troubleshoot mode. I am only using the built in windows defender

How do you get the dark background on those pages as it looks that the text color isn't set to a light color?

How do you get the dark background on those pages as it looks that the text color isn't set to a light color?

I use dark mode in windows 11. It makes firefox and all webpages have white/grey text on black background. Switching from dark mode to light mode does not solve the problem.

When I click into a "comment" or "edit" box on youtube the prompt does not even show up and everything I type is invisible.

When I click "reply" on an existing comment I get a prompt and I can see what I type.

With prompt I mean the "|" symbol that indicates where my input will be (it looks a little different than a pipe)

I just started ms edge and have the same problem there :(

I have just started to have this exact problem. It began with the latest Firefox update, 133.0.3. I cannot find a setting either on YouTube or Firefox to change my font color for the Comments. I'd like to roll back the update to see if that resolves the issue.

I had this problem in the last week, and I went into Firefox/Tools/Settings/Web Appearance and changed the setting from "automatic" to"Light" and the problem disappeared. Of course, a lot of my backgrounds are not light instead of dark, but at least I can see the comments in YouTube as I am typing them.

"Somehow" this problem went away for me. I didn't do anything specific, Windows11 had a few automatic updates but I can't say if they had any impact. I don't comment often on youtube, today I saw that I can now see what I type in the comments again.

Thanks alot for all the replies and help, Regards