Your code writers need to write code to handle Facebook. When scrolling through FB the feed constantly jumps ahead 5 or more posts... It's not a FB issue, its a Mozilla issue, in as much it doesn't occur with Google Chrome, or Microsoft Edge... I could use them for FB but then I won't have my Firefox addon's..... Maybe collaborate with their code writers and ask how they addressed this issue...
Opaite Mbohovái (4)
The issue was reportedly fixed in Fx 119.0.
https://www.mozilla.org/en-US/firefox/119.0/releasenotes/ https://bugzilla.mozilla.org/show_bug.cgi?id=1779404
Reportedly being the key word... App still scrolls ahead as of this morning....
The fault may be with your browser. You could try clearing the cache then deleting Cookies. Use the Inspector (ctl+shft+i > the Storage tab) to clear cookies. If that doesn't work, try right-clicking the site in History then Forget about this site. Make sure you have a backup record of your user name and password before doing that because they will be forgotten also.
https://support.mozilla.org/en-US/kb/how-clear-firefox-cache https://support.mozilla.org/en-US/kb/delete-browsing-search-download-history-firefox#w_remove-a-single-website-from-your-history
If none of those fixes the issue, try restarting in troubleshoot mode.
https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems (also deals with hardware acceleration) https://support.mozilla.org/en-US/kb/troubleshoot-issues-related-to-add-ons
Does it still happen in a new profile? An easy way to test a new profile is to install Developer Edition and see if it happens there or refresh your existing profile.