Created attachment 596698 [details]
Ubuntu 11.10 and Mac OS 10.6 display
Mozilla/5.0 (X11; Linux x86_64; rv:13.0a1) Gecko/20120213 Firefox/13.0a1
The page title text is displayed in a larger size on Linux (as in the attachment) comparative to Mac OS or Windows. Or as it is specified here:
Using Ubuntu 11.10 with default fonts.
Will be fixed by bug 729878.
Fixed by bug 729878.
Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20120313 Firefox/13.0a1
Verified on Ubuntu 11.10. Latest Nightly. Title text is displayed appropriately-same size as in Windows (compared with W7).