பயர்பாக்ஸ் ஆதரவு மன்றம்

This has happened a few times before after a Firefox update, but the most recent occurrence was after the update to version 117.0.1. My mouse wheel will not scroll in the bookmarks drop down menu, I have to use the up and down arrows in the drop down menu which is very slow. When the scroll wheel did work in the past, I could be scrolling and then move the cursor to the up or down arrows and scroll even faster still using the scroll wheel and get to the folder I want a lot quicker. The scroll wheel works normally while scrolling through webpages, the only place it doesn't scroll is the bookmarks drop down menu. I'm running Firefox version 117.0.1 (64 bit) on a Windows 10 notebook PC. Any help would be greatly appreciated, thank you.

This morning, I brought up Firefox and found my bookmarks (including the toolbar) had vanished. I tried restoring my profile folder, but that didn't help. I also tried restoring the bookmarks from Firefox's own backups, but I got some "Unable to process backup file." messages. What do I do now?