If you just upgraded Firefox and it can no longer open any websites but other browsers or programs can, see the Fix problems connecting to websites after updating Firefox article.Getting error messages when you try to load up a website? Here's a few articles to help fix specific connection problems. Slowdowns can be caused by a number of things so we've summed them up in the Quick fixes if your Firefox slows down guide. The Firefox won't start - find solutions article should cover it. Consider using it before going through a lengthy troubleshooting process.Ĭheck out our handy guide, Avoid crashes - Tips and tricks. The Refresh Firefox feature can fix many issues by restoring Firefox to its default state while saving your essential information.