I tried "start.at/kairo" and some local pages, everywhere the same problem occurred with M5: All those frameset-documents used "marginheight=0" and "marginwidth=0" in <frame> tags but Gecko ignored those properties and showed the documents with margins in those frames. (I think it should be a "all OS" and "all platforms" bug but i could only test it with Win95.)

Fixed with latest checkin.

The behavior really depends on how you have your frameset defined. Looking at the referenced site, it looks as if the margins are now altered. In a test case that I put together: <frameset rows="100, *, 75"> <frame src=fsa.html name=fsa scrolling=yes marginwidth=0 marginheight=0> <frameset cols="100, *"> <frame src=fsb.html name=fsb scrolling=yes marginwidth=0 marginheight=0> <frame src=fsc.html name=fsc scrolling=yes marginwidth=0 marginheight=0> </frameset> <frame src=fsd.html name=fsd scrolling=yes marginwidth=0 marginheight=0> </frameset> </html> the left margins altered, but the top, right and bottom margins were not. The content of each frame reference contains dummy text. SHouldn't the top margin be altered?

I checked this with M6 and saw it work the right way with my own files.