Every time I open FF & before I can do ANYTHING, it gives me a button to press, while saying something about javascript "missing = in xml attribute".
I can't do anything in firefox until I press the button, and the button keeps popping up every single time I open ff, even after deleting it and redownloading it, turning my computer off and on again, etc etc.
Wšykne wótegrona (1)
It is possible that there is a problem with the files sessionstore.js and sessionstore.bak in the Firefox Profile Folder.
Delete the sessionstore.js file and possible sessionstore-##.js files with a number and sessionstore.bak in the Firefox Profile Folder.
- Help > Troubleshooting Information > Profile Directory: Open Containing Folder
- http://kb.mozillazine.org/Profile_folder_-_Firefox
Deleting sessionstore.js will cause App Tabs and Tab Groups and open and closed (undo) tabs to get lost, so you will have to create them again (make a note or bookmark them).
Try to clear the cache and the cookies.
"Clear the Cache":
- Firefox > Preferences > Advanced > Network > Cached Web Content: "Clear Now"
"Remove Cookies" from sites causing problems or all cookies if you can't identify the domain:
- Firefox > Preferences > Privacy > Cookies: "Show Cookies"