Bug#686074: Feature-request: Make IceWeasel work with FireFox, side-by-side

[Alexey Eromenko]

Package: iceweasel
Version: 3.5.16-16
Severity: wishlist

The problem with Debian's IceWeasel, is that it becomes outdated so
fast, during Debian's stable lifecycle, so that some sites do not work
with it (properly) anymore.
Real-world problem: GMail, which degrades me to Basic HTML, vs. full
experience. (due to outdated version of Iceweasel). HTML5 sites /
games also refuse to work.

What I would like to do, is to install & run Mozilla FireFox
side-by-side with Debian's IceWeasel.

Actual Result:
Currently, if I start Mozilla FireFox, then Iceweasel I get this ERROR:

"Iceweasel is already running, but is not responding. To open a new
window, you must first close the existing Iceweasel process, or
restart your system."

NOTE: I realize this is upstream limitation of FireFox.
Just I ask to use a different default namespace (or how is it named in
FireFox lingo?) for Iceweasel, so those two browsers never ever
collide, if possible, and can run side-by-side.

Expected Result:
The two browsers should run side-by-side, no collisions.

NOTE 2: Google Chrome and Debian's Chromium *do work* side-by-side, no problems.

I am using Debian GNU/Linux 6.0. I believe this problem also related
to upcoming Debian 7.0/Wheezy and it's Iceweasel v10-ESR.
-- 
-Alexey Eromenko "Technologov"