

You need seperate profiles to prevent the two versions of firefox to interfere with each others settings. The -p ff52 refers to an independent profile ff52.


The option –no-remote prevents the old firefox to see a possibly running instance of Firefox Quantum. In my case I can start the older firefox with the command But I guess this also mitigates possible security problems involved in running older versions of firefox. That also means that you cannot make this setup globally, for all users. To run the binary you must move the whole folder to your home directory. Unpacking the archive produces a folder firefox containing a firefox binary and all necessary libraries. At Mozilla you can download every (?) old version of firefox in. To do this you must be willing to work with multiple independent profiles. In the end I decided to run both versions side by side. It’s FAST, a quality that comes in handy on my not-so-new-anymore desktop machine. But I did like the snappiness of the new Firefox. The suggested replacements are often not really satisfactory. Firefox Portable is a dual-mode 32-bit and 64-bit app, ensuring Firefox runs as fast as possible on every PC.I wasn’t happy either when I noticed Firefox Quantum didn’t support some popular plugins anymore. Plus, thanks to the launcher bundled in the Mozilla Firefox, Portable Edition, it leaves no personal information behind on the machine you run it on, so you can take your favorite browser along with all your favorite bookmarks and extensions with you wherever you go. It has lots of great features including popup-blocking, tabbed-browsing, integrated search, improved privacy features, automatic updating and more. Mozilla Firefox® is a fast, full-featured web browser that's easy to use. Individual users should use standard Mozilla Firefox, Portable Edition.

It is intended for groups who deploy and maintain the desktop environment in large organizations such as universities and other schools, county or city governments and businesses and the developers who support them. It is always a different version than Stable according to our ESR release schedule. Mozilla Firefox® ESR, Portable Edition is the Extended Support Release of the popular Mozilla Firefox web browser bundled with a launcher as a portable app, so you can take your browser, bookmarks and passwords with you.
