I built a few Firefox 3.5 compatible xpis for Windows and Linux:
Windows: http://gkovacs.xvm.mit.edu/google-gears/gears-win32-opt-0.5.25.0.xpi Linux i386: http://gkovacs.xvm.mit.edu/google-gears/gears-linux-0.5.25.0.xpi Linux x86_64: http://gkovacs.xvm.mit.edu/google-gears/gears-linux-x86_64-0.5.25.0.xpi diff: http://gkovacs.xvm.mit.edu/google-gears/gears-gcc433.diff
