Mozilla Firefox - Older version required

I haven't had many computer problems recently so I have not made a nuisance of myself on MG. So this is a really quick inquiry/question.

I need to download an older version of Firefox (The 3.0.11 version to be precise) as it is the only version that supports the Tab Mix Plus Add On...(It's a brilliant Add On)..but I can't find it anywhere........It's not on www.olderversion.com either.....

Anyone know where it is hiding?

Kind regards
Onnha

 

Yeah!!!!! Sorted!

THANK YOU! My life isn't ruined anymore!!!!!

Many thanks

Onnha
xxxxxxx

 

Will get back into my box now until the sun goes down........