Hi Dueceswild76, Have you accidentally told Windows to open all hyperlinks with MS Frontpage? I would check to be sure that Firefox is your default browser. I'd also right click on a html document or url and check to see what you have set as the default program to open that type of file. If that all checks out, try starting Firefox in [[Safe Mode]]. If you don't have the issue while all of your add-ons, extensions, and themes are disabled, you can try adding them back in one by one until you find the culprit. You should look at the [https://support.mozilla.org/en-US/kb/Troubleshooting-extensions-themes Extensions and Themes troubleshooting guide ] and the [[Troubleshooting plugins]] article as well. Hopefully this helps!