Mighty Joe's Firefox - Tried and True!

This is a no brainer. Just install this because eventually you might need it. It expends no resources and it doesn't take up space in your browser. The information it provides at your fingertips could be crucially important to you.

I've had a couple of problems with Firefox booting up and the interface looks all broken up. Like it's at the wrong resolution and there are problems with the frames and menus. It's not a functional browser and I have not been able to fix it. So then I have to create a new "profile" in Firefox. Well you'll want to move your old bookmarks and extensions file over from your old "profile". Even if this has never happened to you, and it might not because I am a power user of Firefox, it's great to know where your bookmark, theme and extension files are stored. Even with this drawback to the browser environment I still think very highly of Firefox and the user community. Eventually these issues will resolve and having this information limits the potential damage it could cause you.

After you download the extension there is a menu option under your "tools" file that says "open profile folder" and when you select that it brings up the file in the file Explorer. Sometimes it can become really important to have this information at your fingertips.

https://addons.mozilla.org/extensions/moreinfo.php?id=545