custom build - worried about Mozilla\Firefox hardcode

Discussion of third-party/unofficial Firefox/Thunderbird/SeaMonkey builds.
Posts: 1
Joined: February 9th, 2016, 3:03 am

Post Posted February 9th, 2016, 3:06 am


I would like to build a custom distribution of firefox.
However, configuring both
ac_add_options --with-app-name=ABC
ac_add_options --with-basename=XYZ
ac_add_options --with-branding=browser/branding/unofficial
and then modify the files \locales\en-US

none of these change the AppData folders "Mozilla" or "Firefox"

likewise the registry key HKLM\Software\Mozilla still contains Mozilla

From looking at the install scripts, this appears to be hard-coded.

If a user currently has firefox installed and I then distribution a
custom version of firefox, changing the install location
as per the /INI= configuration switch InstallDirectoryName=

The profile folder create by default will collide, is there any way to do this?
also with the registry? I would like to keep the entire application separate if possible.

My major worry is that an uninstall of my "custom" version could impact a real version of firefox.

Thank You


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Joined: October 19th, 2007, 1:53 am
Location: The South Coast of N.S.W. Oz.

Post Posted February 9th, 2016, 3:29 am

Moving to 3rd Part Builds...
Ancient Amateur Astronomer
Win-7-HP/Intel® DualCore-2.0GHz/500G HDD/4 Gig Ram/550Watt PSU/350WattUPS/Firefox-20.0-62.0-70.0/T-bird-
(Always choose the "Custom" Install.)

Posts: 311
Joined: June 20th, 2011, 10:37 am

Post Posted February 9th, 2016, 10:48 pm

MOZ_APP_VENDOR controls Mozilla
MOZ_APP_BASENAME controls Firefox (Maybe, I forget it)

But there may be no config option, so you should modify browser/

Modify or add something in it:


You can try it.

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