Same problem here with same configuration than Michael except 32 bits instead of 64 bits. (Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.3a1pre) Gecko/20100204 Ubuntu/9.10 (karmic) Minefield/3.7a1pre).
But this problem seems to come from ubuntu packaging (ppa repositories), since if I download nightly build directly from ftp,
(Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.3a1pre) Gecko/20100204 Minefield/3.7a1pre) it works (i even retrieve the flash working with WindowlessDisable set to false).
Maybe something to check with the way ppa wrapping scripts launch firefox?
Same problem here with same configuration than Michael except 32 bits instead of 64 bits. (Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.3a1pre) Gecko/20100204 Ubuntu/9.10 (karmic) Minefield/ 3.7a1pre) .
But this problem seems to come from ubuntu packaging (ppa repositories), since if I download nightly build directly from ftp,
(Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.3a1pre) Gecko/20100204 Minefield/3.7a1pre) it works (i even retrieve the flash working with WindowlessDisable set to false).
Maybe something to check with the way ppa wrapping scripts launch firefox?