Firefox Portable - updating without asking
Hi,
I love PFF but it has lately updated without me being able to stop it. It downloaded updates for 1.5.0.1 or whatever....will this cause me any problems with PFF in the future? thanks
New: Zulip (Mar 10, 2026), Platform 30.2 (Feb 17, 2026)
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Hi,
I love PFF but it has lately updated without me being able to stop it. It downloaded updates for 1.5.0.1 or whatever....will this cause me any problems with PFF in the future? thanks
Can anyone tell me if there are any implications with using the Fasterfox extension with Portable Firefox? Does it cause more wear to the USB drive with extra writes to the drive? I am happy to use it on my portable hard drive but it was using it on my flash drive which concerned me.
Thanks in advance
Hi,
When I tried to run PortableFirefox for the first time, it detected
the firefox.exe running on my main machine. After shutting that down,
it could then run. Also, I could then restart the main machine firefox
as well.
What is this dependency? (Note, I code Win32 in my day job, so I would
like to help fix this.)
Hi,
in Mozilla.org Firefox (Finnish version) when I upload
large files (2-6 Mb) in my SquirrelMail webmail form, in middle
of transfer it gives trasfer warning (translated to English):
"Warning: commandfile does not answer to calls.
- In this page commandfile is busy or does not
answer to calls. You can stop executing commandfile
execution or wait for it to finish.
[Stop commandfile] [Continue]"
If I click Continue, it asks the same question again many
times, until file uploading is finished.
But, in Portable Firefox, it uploads file
without warnings, straing to finish! Why? What setting does this?
hi! i just want to know where the certificates are stored.. where can i find the file itself, the .pem file. thanks!
I did this in two different PCs with clean portable firefoxes... The patch it downloads fails, so it ends up downloading the whole thing from scratch. then update works. It's a pain if you are on dial up (slow connection)...
I wanted to report this as a bug, but couldn't find any tools to report a bug. any ideas?
If i was using "userContent.css" where would that file go? Or what folders would i have to make...
From what i know of the profiles in Mozilla Firefox, there was a string of numbers folder then the profile folder where you can put the userContent.css file in the chrome folder (not sure how this helps...)
but i would like to know for a fresh install of PortableFirefox 1.5. Because i believe after a upgrade to 1.5.1 there are several new folders made that lead to the correct folder the userContent.css needs to be in to work.
I have PFF 1.5 on my USB stick with the "Mr Tech Local Install" extension.
THat has a facility to specify an editor to view or edit user.js and several other files. Because you don't know what drive letter the USB stick is going to have on a particular computer I am unable to specify a command line to find an editor.
I've thought of putting notepad in the PFF exe file directory but can't get anything to happen.
Hi All,
I developed an application that uses Portable Firefox browser, and works very well with it. However, I have one problem for now. When I click on a link (hyperlink with extrnal URL) within the content are of my application, the link opens up another instance of Portable Firefox browser window for display.
Since this link is an external URL, how can I have Portable Firefox it up with user's default browser, such as IE?
Can Portable Firefox connect to a URL (external to my application), and open the URL with user's default browser (connection and proxy settings), even in a firewall environment?
Hi,
how to make PortableFirefox not saving any temporary files or some other stuff on host operating system?
And is there any working method to make PortableFirefox running completely in read-only mode? Perhaps except bookmark-manager 
I want to make sure not leaving any traces in operating system i ***used*** to start PortableFirefox.
***) Is PortableFirefox linked statically?
Really running stand-alone?
Tips and tricks are appreciated.