Hi,

Please check if this happens in Safe Mode. Safe mode disables the installed Extensions, and themes (Appearance) in Tools (Alt + T) > Add-ons. Hardware acceleration is also temporarily disabled - the manual setting is Tools > Options > Advanced > General > Use hardware acceleration when available. All these settings/options/add-ons can also be individually or collectively disabled/enabled/changed in Firefox normal mode to check if an extension, theme, option or hardware acceleration is causing issues. Disabling/enabling hardware acceleration, and some types of add-ons in normal mode may require a Firefox restart.

Uninstalling Add-ons

Uninstalling Toolbars

Troubleshooting Extensions and Themes

Problematic Extensions

Options

Hi, I just got home and am experimenting. I tried the Safe Mode for awhile and had no occurrences and now I am back to normal mode to see if it repeats itself and where.

Thanks.

when you have any of these problems ... >> do this >> Type about:config in the address bar

   Click I'll be careful, I promise if prompted
   In the Filter input field type startup
   Double click on startup.homepage_override_url
   Delete the text string and click OK
   Close Firefox and reopen the window to verify that it has worked.

Type about:config in the address bar

   Click I'll be careful, I promise if prompted
   In the Filter input field type startup
   Double click on startup.homepage_override_url
   Delete the text string and click OK
   Close Firefox and reopen the window to verify that it has worked.

OK, I will do that and see what happens. I have had an instance happen once I went back to Normal mode and have turned off a couple of my Add-On's to see if that had any effect.

I'll check back when I get an instance that occurs again.

Thanks.