how to fix display driver not responding

You can use this button to go to the currently used Firefox profile folder: You can delete a possible user.js file and numbered prefs-#.js files and rename (or delete) the prefs.js file to reset all prefs to the default value including prefs set via user.js and prefs that are no longer supported in the current Firefox release. The user.js file is read each time Firefox is started and initializes preferences to the value specified in this file, so preferences set via user.js can only be changed temporarily for the current session. You can check its content with a plain text editor (right-click: Open with) if you didn't create this file yourself. The user.js file is only present if you or other software has created this file and normally it wouldn't be there. Your System Details list shows that you have a user.js file in the profile folder to initialize prefs each time Firefox starts. disable hardware acceleration in the Flash plugin.disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later).check for updates for your graphics drive drivers.You can also check for problems with current Shockwave Flash plugin versions and try this:

How to fix display driver not responding