Hi, I'm not sure why that is happening, but try reinstalling: With Firefox closed, use another browser to download Firefox from https://www.mozilla.org/firefox/all/ and save the file to somewhere convenient on your computer. You can now double click the file you previously downloaded to install Firefox. (This process does not remove your Firefox profile data - such as bookmarks and passwords, since that information is stored in a different location.) ''If your question is resolved by this or another answer, please help other users by marking the best reply as Solved. Thank you!''