Please Note: Please Note: If you use Microsoft Internet Explorer on Windows this will replace the Microsoft VM.

You can get Java Here. This is version 6 update 1 of the Java client and is
for Windows Vista, XP, 2000, and 2003 Server.

Windows 98 and ME users can get Java Runtime Environment Version 5.0 Update 12 from Here.

Java Downloads for all Operating Systems are available Here.

@ mozdev.org

Note: These projects are in development. everything may not be fully functional or stable. USE AT YOUR OWN RISK :)

No.
It has been this way since Netscape 3. Your profile will be there. I had my old Netscape 4 profile detected by Netscape 7 even though I had uninstalled Netscape 4 three years ago. I uninstalled Netscape 7 and Mozilla 1.1 picked it up. I uninstalled Mozilla 1.1 and Mozilla 1.2 picked my profile up.

Due to differences in the way browsers interpret and translate HTML code, and different types of proprietary code interpreted only by specific browsers, pages may be rendered differently on your screen. Some pages may appear identically on different browsers, some may render with minor differences, and other pages may have major problems or not work at all.

It is often a good idea to have more than one browser installed on your computer in case something like this happens. You may want to consider contacting the webmaster of the site in question. If they receive enough requests from Mozilla users, they could be inclined to make changes to the site so it renders properly in Mozilla (and perhaps other browsers).

You can get a non-supported version from here.

BBR uses a separate server to load images. In Mozilla go to File > Preferences > Privacy & Security > Images > check Accept All Images. Close browser and reopen.

There is an extremely useful extension called Adblock that can be found at »adblock.mozdev.org .

Several tutorials and filter sets can be found at the following locations:

The Adblock Project

Official home of Filterset.G

Compose and analyze regex patterns

These are also great advertisement blockers:

NoScript

AdblockPlus

Credit Bobby_Peru

See this post:
»[FireFox] Download Manger - 2 file limit?