ERROR MESSAGE: The application “Firefox.app” can’t be opened

Hardware: iMac 5K, 27-inch, 2017 macOS: Ventura 13.2 Firefox: 109.0.dmg File Type: Disk Image For an unknown reason my Firefox browser locked up in the middle of a sess… (閱讀更多)

Hardware: iMac 5K, 27-inch, 2017 macOS: Ventura 13.2 Firefox: 109.0.dmg File Type: Disk Image

For an unknown reason my Firefox browser locked up in the middle of a session. A full system re-start failed to fix the problem – all other software Apple Safari, Adobe Lightroom & Photoshop and Microsoft Office etc. continue to work as normal. Both Bitdefender and Malwarebytes full system scans have failed to identify any security issues.

To remove any possibility there was a macOS issue I successfully recovered the operating system from the mac in Recovery mode.

As the Firefox app would still not respond to the normal app opening process I removed the failed app from the mac “Applications” folder using the AppCleaner app and downloaded a new Firefox app file from the Mozilla Firefox site. I then dragged the downloaded file to the mac “Applications” folder and while holding the control key Ejected “Firefox” from the menu - the “Firefox” named disk icon on the mac screen and showing in the Finder “Locations” disappeared. Following this I successfully dragged Firefox from the “Applications” folder to the dock.

When the Firefox icon in the dock or in the Applications folder are selected the error message appears: The application “Firefox.app” can’t be opened. Repeated deletion of the Firefox app from the mac, restarting the mac, re-downloading the Mozilla Firefox app etc. etc. has resulted in the same failure. In the interim I am using Safari for the web but want to resume using Firefox asap due to Safari’s limitations.

Am I missing something in the Firefox installation procedure or there is an unrecognised security bug in the system? This is the first time I have had any issue arise with a Firefox installation process on either Windows or Apple systems.

Grateful for any advice.

Poppa 於 1 週前 詢問

Poppa 最近回覆於 3 小時前

Firefox Profile Lost in Upgrade

Hi, I have just upgraded to the newest version of Firefox in the Ubuntu 22.04 LTS Repository. I'm running LXLE Linux, a Debian derivative. I ran sudo apt-get update to … (閱讀更多)

Hi,

I have just upgraded to the newest version of Firefox in the Ubuntu 22.04 LTS Repository. I'm running LXLE Linux, a Debian derivative.

I ran

sudo apt-get update

to update my sources, and then ran

sudo apt-get upgrade

to execute the system upgrade.

After I upgraded, I started Firefox, and all my history over 6 months, my passwords, and my profile settings were obliterated to a stock Firefox install.

How do I access my old information? I have lost passwords. I cannot access business information or email. I have tried searching for profiles using about:profiles, but I have only one - the default. I have also searched in the .mozilla/firefox folder in my home directory, and I find profiles.ini in that folder. However, there are only two profiles, and I tried setting Default=1 for each of them and then starting Firefox, but with no different result. The new installation of Firefox launches.

In my /home/deadpool/snap folder, I have firefox, and multiple versions, or so it seems. I have this:

deadpool@deadpool-pc:~/snap/firefox$ ls 2263 2277 common current deadpool@deadpool-pc:~/snap/firefox$ ls -lah total 20K drwxr-xr-x 5 deadpool deadpool 4.0K Jan 31 12:29 . drwx------ 10 deadpool deadpool 4.0K Jul 31 2022 .. drwxr-xr-x 4 deadpool deadpool 4.0K Jan 10 2020 2263 drwxr-xr-x 4 deadpool deadpool 4.0K Jan 31 12:29 2277 drwxr-xr-x 4 deadpool deadpool 4.0K Jan 10 2020 common lrwxrwxrwx 1 deadpool deadpool 4 Jan 31 12:29 current -> 2277 deadpool@deadpool-pc:~/snap/firefox$

It looks like there is a symlink for current to the 2077. I would hypothesize that if I set the symlink to 2263, I would see my old firefox install. Is that correct? I don't want to break my install or lose data. I'm sick of that shit.

Thanks, Nathan

nathan65 於 1 天前 詢問

robo Form Extension needs to be added to my firefox brower so Roboforms will work

I opened an account with roboforms yesterday to store my passwords. They say the extension I first installed is not working, tried to uninstall & reinstall but no lon… (閱讀更多)

I opened an account with roboforms yesterday to store my passwords. They say the extension I first installed is not working, tried to uninstall & reinstall but no longer have the link to do that.

thank you, I am new to all of this & find it a nightmare to deal with.

nancy

nancy3116 於 3 個月前 詢問

Jim McCain 最近回覆於 1 天前

Backup

Hi. Today I reinstalled the system on my computer. I redownloaded Mozilla and wanted to log in to restore my bookmarks. I forgot my password. I used the button that I … (閱讀更多)

Hi. Today I reinstalled the system on my computer. I redownloaded Mozilla and wanted to log in to restore my bookmarks. I forgot my password. I used the button that I forgot my password. I used my email and activation link for a new password. After logging back into Mozilla, my bookmarks are gone. Nothing like creating a new account. It is very important for me to recover my data.

Robert Jablonski mail:[email address]

robert_jablonski 於 2 天前 詢問

Terry 最近回覆於 1 天前

Random closing of Yahoo site after downloading any file

Recently Firefox is randomly closing automatically after downloading a file from Yahoo business mail. This happens only with Yahoo business mail and not with other websit… (閱讀更多)

Recently Firefox is randomly closing automatically after downloading a file from Yahoo business mail. This happens only with Yahoo business mail and not with other websites. So, when downloading a file from other websites (gmail, etc.) everything is O.K. This happened recently when Yahoo updated its software. Also, happens only with Firefox

cs_surveyor 於 2 個月前 詢問

jscher2000 - Support Volunteer 最近回覆於 1 天前

download automatically

Hallo, is it possible to automatically perform downloads in the library one after the other? I have about 30 or 40 downloads in the list (videos), 2 to 5 GB in size, whi… (閱讀更多)

Hallo,

is it possible to automatically perform downloads in the library one after the other?

I have about 30 or 40 downloads in the list (videos), 2 to 5 GB in size, which of course take time to download. I have to start every single download individually and sit next to it.

Although I have a fast line (230 MBit per second), it still takes a few minutes for each file.

Is it possible that firefox or an addon is monitoring this list and after completing the first one downloads the next one and then gradually all the other starts?

Thanks

Roland

roland.r.schuster 於 1 週前 詢問

roland.r.schuster 最近回覆於 1 天前

  • 已解決

? opened site/s bar

is it possible to make this opened site/s bar smaller,less wilde ,see my screenshot, this one by : nieuw tabblad like using fonts in about:config. the internet bar i … (閱讀更多)

is it possible to make this opened site/s bar smaller,less wilde ,see my screenshot, this one by : nieuw tabblad like using fonts in about:config. the internet bar i find ok.

s.a.dzwonek 於 4 天前 詢問

TyDraniu 於 2 天前 解答

My Firefox profile cannot be loaded. Cannot start Firefox or profile manager, have followed other articles

After a long time, I've decided to reinstall Firefox on my PC. Upon installing it, I got the error "Your firefox profile cannot be loaded. it may be missing or inaccess… (閱讀更多)

After a long time, I've decided to reinstall Firefox on my PC. Upon installing it, I got the error "Your firefox profile cannot be loaded. it may be missing or inaccessible." I cannot start Firefox.

After looking online, I found this article on the support page: https://support.mozilla.org/en-US/kb/how-run-firefox-when-profile-missing-inaccessible

I tried opening the profile manager, but can't get to it since Firefox won't start. It also is not accessible through using "firefox.exe -P" in the run dialog box.

So then I followed the directions and found my existing profiles.ini which pointed to my profile file. Wondering if it got corrupted, I changed the file extension to profiles.iniold and moved the whole mozilla folder to my desktop. Firefox continued to give me the same error message.

Finally I uninstalled firefox, deleted the mozilla folder under %appdata%, deleted the Mozilla folder under %programdata%, and deleted any mention of Mozilla in regedit. I finally reinstalled a fresh copy of firefox... and I got the same profile cannot be loaded error.

Is there somewhere that I'm not seeing that needs to be deleted to finally get a fresh install? I don't care about the original profile and am happy to start from scratch, but have no idea what I can still do in order to get to that point. Any suggestions on what I can do to completely remove any remnants of the original install from years ago?

robert.whitneyiii 於 4 天前 詢問

robert.whitneyiii 最近回覆於 3 天前

  • 已解決

Used Firefox for years, suddenly it does not work, and new version will not install

Firefox stopped openng, tried to reinstall, no response (see the screenshot) I also use Tor Browser (never any problems) and Chrome (when absolutely necessary, like when … (閱讀更多)

Firefox stopped openng, tried to reinstall, no response (see the screenshot) I also use Tor Browser (never any problems) and Chrome (when absolutely necessary, like when Firefox failed to connect to an external email server and for sending queries like this one because Firefox does not work and will not reinstall. )

bob-hudson 於 4 天前 詢問

bob-hudson 於 3 天前 解答

Can't install Firefox

Hello, I have downloaded Firefox installer but I couldn't install it. It's giving issue that you need to start over but when i start over again it gives the same issue. I… (閱讀更多)

Hello, I have downloaded Firefox installer but I couldn't install it. It's giving issue that you need to start over but when i start over again it gives the same issue. I have some pending work to do on my blog so I nee to install it ASAP. How can i fix it? Thanks

zwigzsq038 於 3 天前 詢問

AliceWyman 最近回覆於 3 天前

  • 被鎖定

Unable to install firefox latest

Hello, I have downloaded Firefox installer but I couldn't install it. It's giving issue that you need to start over but when i start over again it gives the same issue. I… (閱讀更多)

Hello, I have downloaded Firefox installer but I couldn't install it. It's giving issue that you need to start over but when i start over again it gives the same issue. I have some pending work to do on my blog so I nee to install it ASAP. How can i fix it? Please help me. Thanks

zwigzsq038 於 3 天前 詢問

Paul 最近回覆於 3 天前

Need help reverting to Firefox 108. I can install it no problem, but don't understand how to get all my settings back that 109 removed.

Firefox 109 is horrible and I am trying to revert to 108. I have the "Old Firefox Data" file, but have no idea how to get ALL that info back into 108. I am so very upse… (閱讀更多)

Firefox 109 is horrible and I am trying to revert to 108. I have the "Old Firefox Data" file, but have no idea how to get ALL that info back into 108. I am so very upset and frustrated right now! So much wasted time. I cannot believe Mozilla did this to us with no warning!!!!!!!! I have seen some articles on how to get the info back, but I don't really understand them. I am relatively computer-savvy, but I definitely do not understand how all this works. Some "Firefox for Dummies" at this point would be greatly appreciated. I am on a PC using Windows 10 professional 64-bit with automatic updates so it's current.

ElegalEyes 於 5 天前 詢問

ElegalEyes 最近回覆於 5 天前

  • 被鎖定

Firefox 109 is a DISASTER!!!

Locking this thread.Please continue here: [/questions/1403460] I just updated Firefox to version 109. Every single thing that I liked about Firefox is now GONE. Options… (閱讀更多)

Locking this thread.
Please continue here: [/questions/1403460]
I just updated Firefox to version 109. Every single thing that I liked about Firefox is now GONE. Options are GONE. Customizing the toolbar - GONE. Adding toolbars - GONE!!! It lost my open tabs. It won't show the LastPass icon in the toolbar like it used to, so I have to hunt for it now. All my toolbar settings - GONE!

Mozilla - you really should WARN people BEFORE they update that the update is a major overhaul. Why would you just make yourself another Chrome? If I wanted to use Chrome, I would (and I probably will now), but I prefer Firefox - at least I DID prefer Firefox before this update. I do not understand why you completely RUINED Firefox! This update is horrible and I have now lost a full day at work trying to FIX this clusterf**k of a browser mess that you have made for me! For the life of me I do not understand why you took away the ability for the user to make Firefox more user-friendly. Before, I could choose to customize if I wanted to, or not to customize. Now I have no choice and am stuck with the way YOU want it. Well, I don't like the way you want it! I liked it the way I had it customized! I am so stinking furious with you right now! I will be reverting to the prior version and will then search for a new browser. I am really sick of companies taking away things that make their products better. Congratulations, Firefox - you are now Chrome's Clone.

ElegalEyes 於 5 天前 詢問

Download .mov file

I'm searching for a method to download video files that are formatted as a .mov files without changing the file format. Firefox browser 109.0 running on a Windows 10 PC … (閱讀更多)

I'm searching for a method to download video files that are formatted as a .mov files without changing the file format. Firefox browser 109.0 running on a Windows 10 PC modifies the files from .mov to .mp4 when saving the files on the PC from a cloud file storage website. Other browsers such as Google Chrome and Microsoft Edge handle the file download without changing the file extension from .mov to .mp4. How to I alter the settings within FireFox to maintain the original .mov file extension?

brionlap 於 5 天前 詢問

jscher2000 - Support Volunteer 最近回覆於 5 天前

cant execute firefox after windows update today 1.26.2023

did the MS10 update a few minutes ago - ''Quality Updates (50) 2023-01 Cumulative Update Preview for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2 for x6… (閱讀更多)

did the MS10 update a few minutes ago - ''Quality Updates (50) 2023-01 Cumulative Update Preview for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2 for x64 (KB5022478) Successfully installed on 1/26/2023 2023-01 Cumulative Update Preview for Windows 10 Version 22H2 for x64-based Systems (KB5019275) Successfully installed on 1/26/2023 2023-01 Update for Windows 10 Version 22H2 for x64-based Systems (KB4023057) Successfully installed on 1/26/2023''


after, could not "run" my firefox reinstalled firefox x 64 still could not run actually, it did not even build the firefox folder i thought it would under c:\program files/mozilla firefox so, i created folder there called Firefox2, and copied the firefox installer program there, and executed still, no "build" in folder, but has a Firefox icon, but still wont execute

firefox is my default browser ! Thanks for any suggestions mike

Mike 於 5 天前 詢問

Cannot instal FF with previous profile and bookmarks

Hi, I reinstalled FF and initially got the problem of missing profile, so I restored some files from my Mac Time Machine backup and now I cannot even start FF. I have re … (閱讀更多)

Hi, I reinstalled FF and initially got the problem of missing profile, so I restored some files from my Mac Time Machine backup and now I cannot even start FF. I have re downloaded but all get is the small banner page after starting the dmg. How can I start FF and what files can I restore from my back ups to get me back to where I was yesterday? I am totally lost.

itredler 於 6 天前 詢問

cor-el 最近回覆於 5 天前

Firefox 52.0.2 autmatically updates to 60.x even though I have selected Don't Update

Hi all! I am forced to use a specific version of Firefox to use a particular site. The version is 52.0.2 (yeah, I know - don't start). The site also needs a specific ve… (閱讀更多)

Hi all!

I am forced to use a specific version of Firefox to use a particular site. The version is 52.0.2 (yeah, I know - don't start). The site also needs a specific version of Java (JRE8 - Update 161). I am on Windows 11 (64 bit) and I also have a regular version of Firefox installed (fully updated to 109.0).

I have successfully installed (multiple times) and I am starting that version of Firefox with it's own shortcut which is configured as

"C:\Program Files (x86)\Mozilla Firefox Foo\firefox.exe" -p Foo -no-remote

In the first session, I go to Tools->Options-Advanced-Updates and set it to never download updates. If I now exit and start again, Firefox installs updates and upgrades to a new version namely 60.x.x

How can I prevent this behavior?

agupte 於 1 週前 詢問

agupte 最近回覆於 6 天前