scheck selection boxes are not displayed in the window options, nor does the scroll bar - why?

Firefox is very erratic running. Scrolling is choppy at best. Usually, rocking it and descend is too far or no movement at all.
Also, the scroll bar is black and there is no visible grab buttons to go up or down. Up and down arrows at the top of the bar are also blacked out.
Selection boxes do not appear in tools, Options. Therefore, it is very difficult to make the custom choices.
There is a significant delay after clicking 'OK', 'Cancel' or 'Help' buttons-, in fact, other buttons.
I have 2 Add-ons 'All-in-one Side Bar' and 'Last Pass', no more.

If I open firefox in safe mode all these problems disappear. Everything moves smoothly and check boxes appear.

Have you tried to change the default Firefox theme, if you are using another theme?

Have you tried disabling hardware acceleration?

All this is in the article link I posted.

Find out what steps to follow when the problem occurs in Mode without failure of Firefox, according to your original question and follow the links in the next section of the article.

See also - https://support.mozilla.org/en-US/kb/troubleshoot-and-diagnose-firefox-problems

Tags: Firefox

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