for example you want to run two instances, one installed normaly the other install as a portable firefox

>> the problem is that both instances are using the same profile by default!!

solution:

- open a firefox >> about:profiles
- create a new profile, called it for example "portable"
- no create a "shurtcut" for the portable firefox binary and add a >> -no-remote -P "portable"

- for example: C:\tools\FirefoxPortable\FirefoxPortable.exe -no-remote -P "portable"

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