left mouse button does not work after upgrade of firefox -- other search engines work well
My left mouse button no longer works when I access programs through Firefox web browser. Especially on my gmail or a drop down menu, etc. Other browsers (Google chrome Internet Exp) work just fine. Happened after latest download. Removed update and reinstalled and still does not work.
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Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
- Don't make any changes on the Safe mode start window.
- https://support.mozilla.org/kb/Safe+Mode