Firefox Support Forum

I have Firefox 100.0.1 on my Mac desktop, and Firefox 100.0 on my MacBook Pro laptop. I can no longer access my Microsoft OneDrive account via the web on my desktop, but I still can do so on my laptop. I have gone through your posted troubleshooting steps for Firefox on my desktop, to no avail. How do I get my desktop back to version 100.0 so it will work again? I can access my OneDrive account via the web on my desktop when I use the Safari browser, so the issue is definitely with Firefox version 100.0.1, and not with my desktop.

I have an Apple M1 chip machine. Firefox isn't working. Happened before, downloaded new Firefox. Problem has recurred and I cannot remove old Firefox. I remove it from applications, reinstall, and then it tells me I already have Firefox open.

Hi, HELP!! My browser keeps crashing on sites that I use on a daily. I use office 365 outlook, and teams. Its been getting worse and worse like crashes every 15-20 mins. I've sent the reports but I have not see a patch to fix the issues. Please help otherwise I have to go to another browser.

Here are the links to the sites I work online that keep crashing on the Firefox browser: https://acu.empirepro.com/AcumaticaERP/Frames/Login.aspx?ReturnUrl=%2fAcumaticaERP%2f https://outlook.office365.com/mail/inbox https://teams.microsoft.com/_#/conversations/19:175319c1-ef69-4f40-a21d-173c9a0afbad_8a69628f-f70f-4696-ae5e-430740483a19@unq.gbl.spaces?ctx=chat

Thanks, Oscar G.

In the last few weeks FF has started running really slow. Launch takes 4-5 minutes, the browser won't navigate to any webpages. Preferences can't be opened. The force quit window show the app to regularly moving in and out of a "not responding" state. I had version 95.0.2 installed (the latest). I'm running OSX 10.15.7 (catalina). I uninstalled an reinstalled 95.0.2 and the same problem persisted. I downgraded to 94.0, and created a new profile in the process, and still had the performance problem. Chrome and Safari don't have the problem, and my machine is running as expected with all other apps. I don't have any sites load upon launch. I have 16G of RAM.

Since I can't open prefs, I can't purge caches or anything like that.

I am trying to remove old unused primary email and change to new My old email which I have NO ACCESS TO is [email address] My new email is: [email address] Please email me at the icloud account THANK YOU!!!!!!

Recently I got a Mac computer and I installed Firefox in it. I can't find "About Firefox" in Application Menu.

How to show it in Application Menu like Windows and Linux?

Since updating, "Exit Full Screen" now causes viewed page to become a narrow sliver at the top of the screen, and the page unusable. I typically drag pictures from my desktop to Facebook, etc., but can no longer do that. (I know there is another way to access pictures from the desktop, but it is currently unreliable on my machine, which is very slow and wonky right now.) Can I revert to the former function where "Exit Full Screen" just makes the page smaller but still usable?

When opening any version after 89, Firefox opens then is unresponsive to any action. I have to force quit. I copied the crash report that is sent to Apple. It is a 500+ page Word document. The only solution is to reinstall v89.0.2 and it works fine. Then not allow automatic updates.

Any suggestion appreciated.

Thanks Ken

I am writing you using Safari. When I click on the Firefox icon in the dock, "Fiirefox" does not appear in the menu bar, instead I keep getting the same message window, "The application "Firefox" can't be opened."

I am using an iMac, OS 10.15.7. This problem just started today after using Firefox for years

Hello,

I have been trying to use Firefox and it won't load, the page just doesn't load to firefox. I have Mac OS Monterey 12.0.1. I have deleted the app and reinstalled it but nothing works. Someone, please help!! The browser doesn't work it won't open.

Greetings,

For a few months I've been experiencing consistent crashing in Firefox 95.x versions. At first the crashing happened "randomly" while browsing Facebook, but I eventually identified a pattern and learned that the crashes would happen when a Facebook 3D photo attempted to render in the feed.

Since then, I'm able to consistently reproduce the same crashing issue by opening Google Maps and launching street view. The crash happens immediately when street view attempts to load (unsuccessfully). This happens even with all plugins disabled.

Unfortunately I've had to failover to Google Chrome due to the stability issues in Firefox, though I would like to return to Firefox if this issue can be resolved. The issue does not present itself in other browsers.

I'm currently on Firefox v95.0.1 64-bit on MacOS Catalina 10.15.7, and my GPU is an integrated Intel HD Graphics 4000 1536 MB with a dedicated NVIDIA GeForce GT 650M.

Thanks for your support.

Frequent crashes. I've run Onyx. Reset extensions. Reinstalled firefox. I've been using google maps frequently, so I switched to safari and that crashed too. Trying chrome now -- no problem yet. I'm wondering if GPU is at fault. I've ramped up cooling based on GPU. Still crashing. Tried holding down D and option D to test ram but I just get a command line on a non-responsive screen.

Model Name: Mac mini

 Model Identifier:	Macmini6,2
 Processor Name:	Quad-Core Intel Core i7
 Processor Speed:	2.6 GHz
 Number of Processors:	1
 Total Number of Cores:	4
 L2 Cache (per Core):	256 KB
 L3 Cache:	6 MB
 Hyper-Threading Technology:	Enabled
 Memory:	16 GB
 Boot ROM Version:	424.0.0.0.0
 SMC Version (system):	2.8f0

Hi All! Need some help for a client please :) iMac 27in (late 2013) Processor = 3.2Ghz Quad Core Intel Core i5 Memory = 8GB DDR3 MacOS Catalina = 10.15.7 1TB HDD Not sure if this is a MacOS thing or a Firefox thing. My client would prefer to use Firefox, currently using Chrome. However - whenever they close Chrome or shutdown / restart the computer, Firefox looses everything and they have to re-import all the data from Chrome. This is happening on a continual basis. It's simply not saving any data / settings that are imported from Chrome.

Thanks!

Hello. Have only 1 version open, yet get error msg can't open more than 1.

Macbook Pro Monterrey 12.3.1 updated today. When restarted after update, got notice that I now had newest version of Firefox.

Have gone through Apps folder, Trash, searched Finder, task bar, every place. Deleted Firefox and downloaded again. Still get that error msg, even though there is only 1 on my machine.

Desperate, have to file taxes tonight. Don't want to resort to Chrome and have my privacy violated.

Please help.

Thanks so much,

Lynne

Hello! We distribute Firefox add-ons on PC and macOS outside of Mozilla store.

Until Firefox 100.0 our users were able to install the add-on by clicking a button on the product side which was opening a link to XPI file hosted on our company's download server. That was triggering a usual install dialog from Firefox where it asks user to confirm the installation.

Starting from Firefox 100.0 this stopped happening and we started receiving numerous support calls from our customers about not being able to install the add-on. The issue now is that when the XPI link is opened in Firefox, the install dialog does not appear which brings a lot of confusion to the user. Firefox shows the link to the XPI in the address bar but does not start the usual install process (attaching screenshot of how it looks like on my Mac). The issue applies to both macOS and Windows platforms. I've opened a bug case on bugzilla. The link for reference: https://bugzilla.mozilla.org/show_bug.cgi?id=1766965

Could someone please clarify how we should proceed with this issue? We are now getting reports of this issue from many of our customers. Thank you.

Suddenly, when I search the web with a topic search term, e.g. "thrombin", I get the error message: 'The page you are looking for cannot be displayed because an invalid method (HTTP verb) is being used.' Can you help me resolve this problem?

bp-bf9d7385-35e1-43bb-95b2-9e2550220105 1/5/22, 4:43 PM

bp-e43e2ef0-e2d9-424e-ac9b-6c7a90220105 1/5/22, 4:37 PM

Firefox crashes when attempting to view google maps street view. I have completed refresh, uninstall and reinstall. Went back to older version ESR to try that with no luck