Mozilla strips file extentions from downloads
 

Not all sites but some I use a lot at work - you download it and it comes down OK with the file name - but no extensions such as .pdf. .docx etc etc - so I either rename it or have to "OPEN WITH" every time

No problems with IE or Chrome

Any ideas why??

I gave up with FF and a large download of satnav updates. Had to use IE. Can't find what FF did with the download, despite all of Google's best help.

Just maybe, Harry? windows 7 - Firefox saves the file without extension - Super User

Use the DownThemAll addon with FF - see if that solves the problem.

it appears to affect files with spaces in the file names from some sites only...... odder and odder........

This would appear to cover your problem:

Filenames with spaces are truncated upon download - MozillaZine Knowledge Base

i.e. it's a server problem.

Gawd Bless you Suh!

changing the settings in Options doesn't work but the TRUNCFIX extension DOES work

That's going to save me a bucket load of time