Hello,
I have installed the Firefox Portable edition and it is working very fine. I also downloaded the Firefox Developer Portable edition and Firefox Nightly Portable edition, but the problem is that these applications do not work at the same time. I have to close and run them one by one for them to work.
I have this alert message.
Another instance of Firefox is already running.
Please close other instance of Firefox before launching Mozilla Firefox, Portable Edition.
Please help!
Thank you.