I didnt ever use Mosaic so cant comment
I cant recall an awful lot about IE early days either because I didnt use it until later. Back then you needed a browser to get online before you could download another and I stuck with what was provided by my dial-up ISP on the introductory floppy.
Unsure about Netscape prior to v3. I certainly recall Netscape Gold being released and thinking it was the best thing since sliced bread, that certainly introduced a lot of new features that for me at least I found very useful.
Youre correct about Netscape 2, which shows a home button, perhaps I was making it hard by doing my own.
Mosaic : Think I used this on a Dec workstation sometime around 1994, so it was very early days. Was using the Internet in 1992, but not via a web browser - usenet news, email.. anyone remember Gopher?
Had beta versions of Netscape on my Windows 3.11 PC at home - think it was version 0.7 - it was all quite exciting, but as I was paying by the minute for the connection, I didn't like looking at web pages - you were "wasting" connection time!
The thing to do was to dial up, log on, download your email, download all the usenet news headers for the groups you were subscribed to, then disconnect.
You could then reply to emails offline, mark usenet messages you were interested in, and log on again. It'd send your email replies, and download the message bodies of the newsgroups. Disconnect once more, read the messages offline, write your replies, dial up once more and send your replies.
That way you were never online with the meter running without any data flowing! Pausing to read a web page before clicking a link was very wasteful if you were paying by the minute!
I think I switched to IE around version 3, when it definitely started overtaking Netscape in features and usability. I had tried earlier versions of IE and found them to be awful.
Ian