I have a big problem with Firefox. It's terribly slow and I was not able to figure out the problem (I disabled a lot of plugins, changed a lot of settings, but with no success).
Now I want to test a "fresh installation". Therefore my question. Is it possible to install Firefox (with more or less the same version) a second time onto my PC? What do I have to take care of? (I do not want to lose any Data of my current Firefox installation)...
Important: They do NOT have be be able to RUN in parallel (only be installed in parallel).
Thank you very much for your advice! Jens