Firefox Portable

We need to include (and modify) a browser on a USB that leaves as little trace as possible of its existence. I know there are things that we can't do anything about (like shellbags and prefetch-cache entries) that show something was run, but we're mostly concerned with browser data. The TOR browser bundle claims to have patched a few other things that aren't cache-related (I think). The quote is:

Hello,

I've noticed the FF portable has been slower after version 31. In one of a client's website (I can't post it here) I noticed via the Network tab in the Webdeveloper tool that it always loads a bunch of files (js and css) whereas in the normal FF version and FF portable 31 it only loads 2 (no js or css). Wondering if you have changed any cache settings or anything else that could affect its performance?

Thanks,
Vilmondes

I was happy with the standard Firefox portable (stable release, currently 37.0.1), and I have been using more than 70 extensions in my current profile which can be traced back to 2008. But in the recent several months, I do have too many tabs opened, so it is quite easy to make firefox.exe to occupy more than 2.4GB memory. In this case, the whole browser window will be completely blank without showing anything and CPU usage will blow up. It is quite annoying because I had to kill the process frequently and resume my work every time.

Installed Mozilla Firefox, Portable Edition 37.0.1 on 04.04.2015, seemingly working just fine BUT going to any Google pages - in my case Google Maps - I find them mirrored, i.e. upside down and back to front. On the 'net this seems a Crome-related thing, so has anyone else come across it in Firefox?
Rolling back to previous version /36.0.4) the Google pages displays just fine.

Dear All,
Thanks for your amazing work, just like my title said:
I try to test whether local firefox exist or not, if exist, then start local version firefox with portable profile. if not, then start the portable version firefox with portable profile.

Is anyone know?
Thanks

hello!
is there a reliable download manager that is proven to work with firefox portable?
because I click to save a webpage withing firefox portable, and I close that tab and at the end it doesn't save it!!!!
why?
thanks!

Hello

I think the launch is long, how to improve it?

and how to delete this : https://i.imgur.com/WGKmmIF.png

Im trying to download the nightly portable at: https://portableapps.com/apps/internet/firefox_portable/test
and it just leads me to: http://sourceforge.net/projects/portableapps/files/

I know youre undergoing some site stuff but those are sourceforge links so they should work, correct?

hello!
somehow I cannot install new addons
the addons download, but don't install, without any displayed error
I have hundreds of them, is there a limit?
or what else could prohibit this?
thanks!

Hi,

What is the different between opening new profile with "firefoxportable.exe -p" parameter and "2nd profile" app which is on the portableapps.com app directory?

Thank you