Firefox Portable

I just had problems with the Sync completely screwing up my desktop version, so now i have to use my Portable version to fix it, but Sync doesn't seem to copy the customization and i have a lot of it. That's why i use Firefox, so i can customize it.
My portable version is both on one of my computer's HDDs and on a USB key.

Can a Developer version of Firefox Portable be installed over a Release version of Firefox Portable?

If so, are there any issues, concerns, or bugs with this process? Should the Release version be updated to the latest Release version before installing the Developer version on top of it, or does it not matter?

Sorry if this is old hat to some people, but it's new to me and I couldn't find a way to search the forum by keyword...

FF Portable 51.1.10 won't play Netflix (W7 Pro, W10 Pro) for me, in fact earlier versions used to, but it stopped about a year ago. I read about the FF open code and DRM issue, so I tried FF (also 51.1.0) from Mozilla. It plays Netflix just fine!

Any idea why FF Portable won't? Thanks,

Kevin

hello,

today I took a backup of my firefox 50.0.2 installation, since I decided to try the esr 45.5.1 version,
why I installed in the original folder which firefox 50.0.2 was, using the appropriate paf file,
then I opened the platform to check if everything was ok and to my surprise saw that
it wanted to update my esr installation to 50.0.2!
appinfo.ini file is correctly indicating that this folder is containing an esr version,
but the platform doesn't recognize it and wants to install the latest release,

any suggestions/workaround?

In our environment (Microsoft Windows) it is not possible to start firefox (Version 50.0.x) from a static mapped network share. (same effect with UNC)

Is thsi a nown Issue? Is thsi a Problem with a Microsoft Security Update? I there a workaround?

I tried to use Firefox Portable 50 with Selenium 3 and geckodriver (https://github.com/mozilla/geckodriver).
Firefox Portable starts but then nothing happens. See the following issue which exactly describes my problem: https://github.com/mozilla/geckodriver/issues/365

Any help is welcome.

sorry my bad english
error link download "check for updates" firefox developer version 52.0.a2

https://drive.google.com/open?id=0BwJp8vr8F9GNb0I4aUxPa2pjWkk

Hello

I am really fed up with the horrible way Portable Firefox manages new versions. For a large number of last version updates, this happens:

I cannot find this in the Mozilla forums. My problem is that I use an extension that in the recent versions do not work the way I want it to, whereas not so recent versions work just fine. But of course Firefox want to update the extension - so how do I turn this off for this extension?
And yes, I've taken this up with the extension creator(s) but there they blame Firefox.
Windows 7, Firefox Portable 49.0.2

Hi everybody,

I'm running into a weird problem with the latest version of Firefox portable. In version 49.0.x, the program stops responding and is never loading.
When I start it, I can see in my task bar (yes, Windows system) 2 windows for Firefox: 1 for the program itself (where the home page stays blank indefinitely - at least 5 minutes, after that, I kill it) and 1 I can't open.
I've already tried several ways to install it without success.
And as I don't see topic about this issue in the forum, I suppose it has something to do with my own installation.