Here's a solution to the problem people are having with not being able to use Microsoft Fax when having the Mozilla browser installed.
Here's what I did on my Windows95 (verB w/USB support) machine:
1.) Open Mozilla, click Edit, Preferences, Mail & Newsgroups
2.) Uncheck the box 'Use Mozilla Mail as default e-mail application' (or something similar)
3.) Close Mozilla
Now go into Windows Explorer and do a search for simply MAPI32.DLL
You will likely find 3 files in the results. You are only concerned with those that appear in the C:/windows/system folder. The MAPI32.DLL file will be 6Kb. On my machine, the other file was called MAPI32x.DLL and was 709Kb.
This larger file is the 'real' MAPI32.DLL that Microsoft fax is looking for when activated.
4.) Rename MAPI32.DLL (6Kb file) to MAPI32MOZ.DLL
5.) Rename MAPI32x.DLL (709Kb file, may be called something a bit different on your particular machine) to MAPI32.DLL
6.) Close Windows Explorer
Now, click Start, Settings, Control Panel.....click Internet, then the Programs tab. The program specified to work with E-MAIL should be Microsoft Outlook (not Mozilla). This is how you need it to be assigned.
Close the Control Panel and then click Start, Programs, Accessories, Fax...Compose New Fax. Or conversely, open say, Word, and bring up a file, then click File, Print, and choose Microsoft Fax. In either case, Microsoft Fax should come up and work fine like it always used to do.
Next, upon opening your Mozilla browser, it will ask you again if you want to make it your default e-mail application. Put a checkmark in the box 'do not ask this question again', then click NO......your Mozilla e-mail screen will come up, and once it connects to your ISP's mail server, you will simply be asked to input your password. Your e-mail should work fine. Mine did.
I also went back a 2nd time to activate Microsoft Fax and it worked. Then I tried my Mozilla browser again, and clicked the mail icon and it also worked fine (it only wanted me to input my password...didn't bother me with the 'make default...' crap since as you recall I'd checked 'don't ask again' previously).
So far, things seem to work fine.
Also, you don't need to go in and click the Mozilla preference again under Mail & Newsgroups to 'Use Mozilla Mail as the Default e-Mail Program'...it's unnecessary (for most people, I'd imagine). Your e-mail will still work fine coming into your Mozilla mail client.