[Fixed] Firefox Portable 92 "is already running, but is not responding." AllowMultipleInstances + Passing Files In

This is so exhausting. I'm always having to do fresh installs even though I am not doing or changing anything on my end. I just use the Portable Apps application to update the browser. Most updates work just fine. The previous updates worked just fine. This one didn't. I don't even have the non-Portable, full version of Mozilla FIrefox. I just have the portable version. But okay. I'll reinstall it tomorrow. Another thing is that this problem occurred on both of my laptops.

Well, I was doing things my way. Because you were acting like you already tested the newest Firefox Portable on your computer and had no problems on your end. So I figured just reinstalling the application to my desired location and restoring my settings would do the trick. But it didn't. I reinstalled it three times, and each time it would not work. So I'm attempting your badly written, confusing instructions. I think that the first thing you want me to do is do a fresh install of Firefox Portable to my Desktop. Okie dokie, let me try that. Guess that means I need an additional PortableApps application on my desktop too. Oh joy. I'm just going to copy my existing PortableApps folder (that does not contain Firefox Portable because I cut that from the folder and placed it on another drive as a backup) from "C:\Programs\Portable Apps" and then install the new Firefox Portable into that folder. Because I can't be bothered to redownload PortableApps when I don't even have a working browser at the moment. Okay, a fresh installation has been installed at "C:\Users\Brian\Desktop\Portable Apps\PortableApps\FirefoxPortable". I am starting Firefox Portable using the exe from inside the folder. Two tabs opened. I will now drag the help.html onto the FirefoxPortable.exe. It opened a new tab. Great. Now let's see what other confusing instruction you have. "Test your existing install using the start Firefox Portable then drop help.html onto FirefoxPortable.exe method." Well, I don't have an existing install at the moment. Let me do a fresh install to my desired location, but let me delete this Desktop install first. Okay, Desktop install deleted. Installing fresh version to desired location. Okay, fresh installation at my desired location of "C:\Programs\Portable Apps\PortableApps\FirefoxPortable". I will not restore my profile or settings yet. I opened up FirefoxPortable.exe and it opened two tabs. Now I will drag help.html onto FirefoxPortable.exe. It opened up a third tab. Cool. Closing the browser now. I am going to copy my profile from the Data folder of my backup into the Data folder of this newest installation. Normally I copy the settings folder from Data too, but I'll skip that step. I am copying and replacing only the profile folder in Data. Okay, opening FirefoxPortable.exe. It has my home page and my pinned tab, like before. Now I'm dragging help.html onto FirefoxPortable.exe. It worked. Cool. Okay, this is where I am stuck. I need to do install the Companion App to VideoDownloadHelper, but the installer won't let me choose a location to install it. It kept trying to install it to my USB drive (G:), but I unplugged the the USB Drive (G:). And after unplugging it, it won't install because that drive is no longer available and it won't prompt me to install it anywhere else. So I will attempt to do it by copying net.downloadhelper.coapp from the backup copy into my new install. That's the Companion App that I want. Okay, I double clicked on FirefoxPortable.exe. It opened up my homepage and pinned tab, like before. Dragging help.html onto FirefoxPortable.exe. It opened up a new tab, good. Going to see if Video DownloadHelper detects Companion App. It does not detect it. I am going to download the Companion App installer directly into the new installation of FirefoxPortable folder. Double clicking VdhCoAppSetup-1.6.3 from the FirefoxPortable folder. Once again "The drive or UNC share you selected dows not exit or is not accessible. Please select another." I looked in the RegEdit and saw some Companion App files I could delete, so I deleted them. That didn't work. So I have no choice but to plug in my USB Drive (G:) and let the Companion App be installed to it, although I don't want it to be installed there. I double clicked the FirefoxPortable.exe. I double clicked VdhCoAppSetup-1.6.3.exe. It installed to my USB Drive (G:) even though I didn't want it to. The VideoDownloadHelper is showing that the Companion App is installed now. Restarting Firefox Portable. Dragging help.html to FirefoxPortable.exe. It worked. It opened up a new tab. I am going to see what happens if I import Companion App settings from a vdh-settings.json file. Restarting Firefox Portable. Dragging help.html onto exe. Still works. Let's see what happens if I copy the FirefoxPortable.ini from my old install to the new install. Restarting Firefox Portable. Dragging help.html onto exe. That broke it. Closing Firefox Portable. Deleting the ini file. Restarting FirefoxPortable. Dragging help.html onto FirefoxPortable.exe. Works again. For some reason, the old FirefoxPortable.ini broke the installation. Now I have to figure out how to remove the splash screen and make multipleinstances=True. I can't find any FirefoxPortable.ini in the new install. I searched for a ReadMe, and found a couple. One of which discussed FirefoxPortable.ini. It said to copy some information and put it into an ini file in the same directory as FirefoxPortable.exe. I'm going to do that right now. Okay, ini file created. I'm going to change two things - DisabledSplashScreen and AllowMultipleInstances to True.

This is my ini file that I created in same directory as FirefoxPortable.exe

[FirefoxPortable]
FirefoxDirectory=App\firefox
ProfileDirectory=Data\profile
SettingsDirectory=Data\settings
PluginsDirectory=Data\plugins
FirefoxExecutable=firefox.exe
AdditionalParameters=
LocalHomepage=
WaitForFirefox=false
DisableSplashScreen=true
AllowMultipleInstances=true
DisableIntelligentStart=false
SkipCompregFix=false
RunLocally=false
AlwaysUse32Bit=false

Restarting Firefox Portable. Dragging help.html onto exe. Broken. Deleting ini. Restarting Firefox Portable. Dragging help.html on exe. Works again. Conclusion. You broke something and now the ini file is causing the application to not work. So I can only use this program without the ini file. But I would like to disable the splash screen and allow multiple instances. So hopefully you can apply a fix soon. Thanks.