Having mouse problems after update; with tabs at the top, if I try to scroll to tabs on the left it instantly scrolls back to the right....also scrolling problems in websites and drop down menus (not having this issue with other programs like Excel, etc) 的最新解答https://support.mozilla.org/zh-TW/questions/13548832021-10-22T08:50:04-07:00Start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -2021-10-22T08:50:04-07:00cor-elhttps://support.mozilla.org/zh-TW/questions/1354883#answer-1453046<p>Start Firefox in <b>Troubleshoot Mode</b> to check if one of the extensions ("3-bar" menu button or Tools -&gt; Add-ons -&gt; Extensions) or if <b>hardware acceleration</b> or <b>userChrome.css</b> is causing the problem.
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<ul><li>switch to the DEFAULT theme: "3-bar" menu button or Tools -&gt; Add-ons -&gt; Themes
</li><li>do NOT click the "Refresh Firefox" button on the Troubleshoot Mode start window
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<ul><li><a href="https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode" rel="nofollow">https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode</a>
</li><li><a href="https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems" rel="nofollow">https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems</a>
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