Sorry to hear you are having problems, I do not think I can offer help, only some general comments.

Who were you getting help off originally ?
If it was the official firefox help live chat for instance your best course of action may be to go back to them, they will already have the information you provided preveously, and will have the resources to give you accurate replies.

Maybe the file is corrupt, maybe it is even too big for firefox to handle. I wonder if you made the helper aware of the file size ?

I do not have the technical knowledge to know what size files are handled by firefox session restore, but I do know that with my own setup if I had a 1/2 MB sessionrestore file it would probably be unworkable the file sizes on my sytem are often in the 1o s of KB order of magnitude not in MB

Any idea of the approximate number of tabs you may have had open ?

Presumably the data is important and not bookmarked or in your history ? if it is in your history that is probably the fastest method of getting something back. Short of getting someone to try and repair the sesionrestore.js the only other easy alternative I can think of for quicly trying to extract a list of tabs, and so salvage something, would be to work on the file with a word processor.

Make yet another copy of the file or files of interest. Rename it with a .txt ending as a file extension name . You can then quickly go through it manually, or with a word processing macro, and try to extract all the URLs ie look for strings commencing http or https

Hey, Thanks John99. Certainly a great alternative.

Will try it out.

Cheers and thanks again! Alvin

You did not say, have you any idea of how many tabs approximatly would have been open in all windows when the problem occured 10 ? 10o? 1000? >1000+??

I did not know if you had your history turned on or not. If you do try recreating creating by using your History I suggest maybe only open and then bookmark in folders blocks of not more than say 50 tabs, and maybe not going much above 100 tabs open at a time. Also remember to make manual backups of your bookmarks (that includes the history with it) as you work, that way you are not totaly reliant on sessionrestore and autosave bookmarks, and should not be in this predicament again.

Make sure that the file extension of the file that you copied is actually .js (right-click: Properties) and not something else. Windows hides some file extensions and that can make you think that the names are the same.

• http://kb.mozillazine.org/Show_hidden_files_and_folders

Go to: Control Panel > Folder Options > "View" tab > under "Hidden files and folders", select "Show hidden files and folders"
To see the file extensions of all files uncheck the box "Hide extensions for known file types"

Thanks, John99 for the advice.

Thanks Cor-el I have checked and the extension is correct.

Alvin