User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9b5) Gecko/2008032620 Firefox/3.0b5 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9b5) Gecko/2008032620 Firefox/3.0b5 Firefox appears to now (after FF3 install) only allow one release of Firefox to run, ignoring profile manager settings. With no firefox running. I start FF3, previous windows/tabs re-open from earlier session. When I click on my shortcut (or command line) to launch FF2 with profile "FF2" all I get is a fresh FF3b4 window. Repeated with FF3 using "-P default" parameter, same observations. All the references to firefox.exe contain full path. Firefox.exe is not on PATH environment variable. Updated to FF3.b5 but no change observed. Reproducible: Always Steps to Reproduce: 1. On a fresh WinXP machine I installed Firefox 3b4 for testing and feedback. 2. Installed Firefox 2 (different installation folder) as certain sites and resources would not function with FF3. 3. Created new profile for FF2, using following command to launch FF2 using separate profile: "C:\Program Files\Mozilla Firefox 2\firefox.exe" -P FF2 Actual Results: Tried the opposite route: after a restart, with no Firefox running: launch FF2. When I try to launch FF3 all I get is a new FF2 window. Expected Results: open new window for firefox 2 when I launch: "C:\Program Files\Mozilla Firefox 2\firefox.exe" -P FF2 open a different window for firefox 3 when I launch: "C:\Program Files\Mozilla Firefox 3beta\firefox.exe" -P default Note: different profiles referenced in each of the above commands: "FF2" and "default"
See -no-remote argument in http://support.mozilla.com/kb/Running+different+versions+of+Firefox+at+the+same+time -> Invalid ?
That is by design that you can only run version of Firefox on Windows.
Status: UNCONFIRMED → RESOLVED
Last Resolved: 11 years ago
Resolution: --- → INVALID
Bug 441422 explains why you need -no-remote in addition to -P on Windows.
Resolution: INVALID → DUPLICATE
Duplicate of bug: 441422
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