I turn on firefox and everythign seems alright, but once i click on the URL blank and type something in when it tries to load the page, it hangs,freezes, then eventually says "Not Responding" and at that point i have to End the process. This hasn't been ever happening to me before. If just started today.
Try Firefox Safe Mode to see if the problem goes away. Safe Mode is a troubleshooting mode, which disables most add-ons.
(If you're not using it, switch to the Default theme.)
Once you get the pop-up, just select "'Start in Safe Mode"
If the issue is not present in Firefox Safe Mode, your problem is probably caused by an extension, and you need to figure out which one. Please follow the Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems article for that.
To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.
When you figure out what's causing your issues, please let us know. It might help other users who have the same problem.
You can check for problems with the places.sqlite database file in the Firefox Profile Folder that stores the history and the bookmarks.
In order to uninstall a possibly unwanted extension, please do the following:
You can find further information about uninstalling extensions in the following articles:
Suggestions does not work for me (Including safe mode). When I tried to enter Outlook, it always becomes "not responding" (outlook is just the most obvious example, there are many sites similar to). I have this problem for almost a year. Tried all the support documentations and suggestions in the forums, but the result is zero. Therefore, Firefox lost a lot of blood but it seems they don't give enough priority to these issues. I love Firefox but I don't have the patience anymore.
Create a new profile as a test to check if your current profile is causing the problems.
See "Creating a profile":
If the new profile works then you can transfer some files from an existing profile to the new profile, but be careful not to copy corrupted files.
Try to boot the computer in Windows Safe mode with network support (press F8 on the boot screen) as a test to see if that helps.