In safe mode, Try disabling graphics hardware acceleration. # Click the menu button [[Image:New Fx Menu]] and select ''Options'' #In the Firefox Options window, click the ''Advanced'' tab, then select ''General''. #In the settings list, you should find the ''Use hardware acceleration when available'' checkbox. Uncheck this checkbox. #Now, close Firefox, wait a few seconds, and then start it normally. Does that allow Firefox to open properly? Additionally, please check for updates for your graphics driver by following the steps mentioned in the following Knowledge base articles: * [[Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems]] * [[Upgrade your graphics drivers to use hardware acceleration and WebGL]] ---------------- If that doesn't fix your problems, please perform the following steps to give us a crash report ID that helps us find out more about the cause of the crash. #Press the following shortcut to get a Run window: [Windows] + [R]. This should bring up a window that contains a text field. #In that text field, enter %APPDATA% and press Enter. An explorer window should open. #From that explorer window, double-click on the ''Mozilla'' folder, then double-click on ''Firefox'' and then on ''Crash reports''. Double-click on ''submitted''. #Now, you should see a list of files that contain reports. Go to ''View'' > ''Arrange Icons by'' > ''Modified'' to get the most recent files at the top of the window. #Open the most recent 5 files with a text editor and copy the IDs. #Paste each ID with '''bp-''' into the reply window on the forums. Thanks in advance! You can find more information and troubleshooting steps in the [[Firefox crashes]] article.