Firefox Community Forum

I can run Firefox once after starting the computer. If I close Firefox, I cannot run it again. Any attempt to start says there is an instance of Firefox running so it cannot start. I did some research and for that running the following yielded some indication of a problem that I cannot seem to solve.

>taskkill /F /IM firefox.exe ERROR: The process "firefox.exe" with PID 10220 could not be terminated. Reason: There is no running instance of the task.

Something appears to have left this PID so that the computer thinks it is running when it appears that it isn't there.

Please advise. [edited email from community support forum]

I need to know how to make subtitles readable again. I want bright white on dark back ground. This constant dim gray on light back ground is terrible. I am elderly, deaf in one ear and wear a hearing aid. I need the subtitles to be readable.

Please tell me how to fix them if it is something I can change. Or is it something the channel owner is doing? That same question applies to the YT bingo card video rectangles. Sometimes they are giant and in a single row I like the 3 wide display, like a bingo card.

Lastly, why do the video choices display on the right side of the screen? That makes the info below them unreadable. They used to be on the left side so hovering over the text is readable. Who is charge of fixing that?