One thing that people on here need to remember/know, is that Mozilla runs slower under LINUX than it does on its other variants.
This has been a big problem for the Mozilla development group, and a lot of work has been/is being done to address it.
Howeve,r please be aware that if you're using Linux speeds as your basis for comparison on speed, that there very well may not be that particular difficulty once it's on AmigaOS.
There is also the question of HOW you came by your binaries, did you go and get the executables? or did you compile the source code yourself under gcc. This can have drastic differences in your execution speeds also depending on a number of factors.
Mozilla is big, and it's also relatively slow, but I think it would be reassuring to computer users who would consider moving to an Amiga system to see at least one piece of software they can identify, and don't have to worry about one day going its own proprietary and incompatible route.