Hello, That is a very strange problem. If Firefox is not running, you can start Firefox in Safe Mode as follows: * On Windows: Hold the '''Shift''' key when you open the Firefox desktop or Start menu shortcut. * On Mac: Hold the '''option''' key while starting Firefox. * On Linux: Quit Firefox, go to your Terminal and run ''firefox -safe-mode'' <br>(you may need to specify the Firefox installation path e.g. /usr/lib/firefox) When the Firefox Safe Mode window appears, select "Start in Safe Mode".<br> [[Image:Safe Mode Fx 15 - Win]] '''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, and you need to figure out which one. Please follow the [[Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems]] article to find the cause. ''To exit Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.'' ---------------- You can backup your profile and restore information by following the guides in these articles: * [[Back up and restore information in Firefox profiles]] * [[Recovering important data from an old profile]] Profiles are stored separately from the FIrefox installation, so you can uninstall Firefox and download a fresh copy here: * https://www.mozilla.org/en-US/firefox/new/ * (or if you need a different localization) https://www.mozilla.org/en-US/firefox/all/ If you figure out what's causing your issues, please let us know. It might help others with the same problem.

opened in safe mode and ran fine. Unchecked graphics accelerator box and back to normal. THanks so much for the excellent help. Chris