Not really--I suppose if you don't have very much experience with Mac, and specifically Mac Classic (OS 9.22 and earlier).
This one's OS 8.6--it was released May 1999. Strictly speaking in computer terms, it's rather ancient, but not as old as say Win95, OS/2, or heck, Lisa...8^)
Well, it would be hard for me to get used to.
Looks similar to IE to me except you have tabs at the side most of the same commands seem to be there