hello, could you please describe in more detail what's going wrong, what kind of error messages you see and so on...

Message I get: "Mozilla Crash Report We're sorry. Firefox had a problem and crashed. We'll try to restore your tabs and windows when it restarts." Then there are options: "Restart Firefox" and "Quit Firefox" Clicking either one just brings up the same box. Thank you!

Oh sorry, so you're getting a persistent crash at startup which sounds quite nasty.

Please perform the following steps to give us a crash report ID that helps us find out more about the cause of the crash.

1. On the keyboard, press [Windows] The image "Windows key" does not exist. + [R]. This should bring up a Run window that contains a text field.
2. In that text field, type %APPDATA% and press Enter. An explorer window should open.
3. From that explorer window, double-click on the Mozilla folder, then double-click on Firefox and then on Crash reports. Double-click on submitted.
4. 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.
5. Open the most recent 3 files with a text editor and copy the IDs.
6. 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 Troubleshoot Firefox crashes (closing or quitting unexpectedly) article.

Thanks, Phillip. i uninstalled and reinstalled and it seems ok now. Thanks so much for your help.