Downloadable Products Filename Issue in Firefox

I have Downloadables stored in database.

When clicking download link in IE all is well and the correct filename stored in DB is used

When clicking download link in Firefox 3.3.6 the download filename contains only the first word of the filename stored in DB

e.g. filename in DB is "My Tax Brief"

Firefox offers it to download as "My.pdf"

thoughts anyone ??

Thanks for info. This isuue will be fixed in the next release