Firefox Portable

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.

I run Xp sp3 with FFP 47.0.1 and it ask me to update to FF 47.0.2. I tryed to find FFP 47.0.2 version on Portable Apps WEB page (Sourceforge), but I've found FFP 49.0.2. If I use Update Software Window (Show Other Update Info) it redirect to mozilla FF WEB page, where FF 47.0.2 seems to be available since November 01, 2016. Could someone let me know how to proceed? Many thanks in advance.

Undo Tab Close function is not working in portable FF ESR 45.4.0 (Ctrl+Shift+T).

I can't open closed tabs like I did in standard FF ESR 45.4.0.

In the open tabs drop-down list Undo Close Tab appears disabled.

This may be a problem with my environment, but I thought I'd throw it out there anyway.

I've started getting the follwing message screens on several sites - Dropbox and Google+ to name two.

Your connection is not secure

The owner of www.dropbox.com has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website.

1. firefox 49 actually check at startup if SSE2 CPU instruction is available. it issues an explicit statement, and does not continue, if that instruction is not available. I guess Windows 7, and newer, can not be installed on such CPUs. It there fore concerns only XP. Did I miss portableapps explicitly mentions that requirement on relevant web pages?

Hi!

I tried to create a chrome folder inside the Profile Folder and put my userContent.css there, but the file didn't work. I ejected the USB and stick it again, nothing. Do I have to put it in another folder or it won't work at all?

Regards!

I have been trying to install Firefox nightly 64 for a while but I always get a "file not found" error during the installer execution.
I have tried some older versions and I get the same error.

Is the support for this version officialy dead ?

Hi.
Can't upload pics/videos to Facebook (in safe mode also does not upload).
IE11, Opera works, but FF - no.
Can you help me?

Hello John and All.

I am running FF portable 47.0 on an Windows XP system. All the Add-on's (plug-in, extensions) show (disabled). Some seem to be running but still show disabled. How can I correct this on my list to make certain all is up to date and working properly. I also assume that some are no longer compatible with the newer program. Thank you.