Firefox Community Forum

Similar to the issue described in this thread (https://support.mozilla.org/bm/questions/1240674), I am unable to open Firefox - it simply refuses to open. I've tried multiple times, the option key, and re-installing. Nothing seems to work, which suggests something about my user settings is the issue, but a) I am not keen on deleting this if possible and b) I won't delete my user settings unless that is necessary. Like the attached thread, I am happy to attach crash reports, but without the ability to even open Firefox properly it's not obvious how I do this - force-quitting it just sends a report to Apple.

Any help much appreciated - I'd quite like Firefox working again.

My laptop is a MacBook Pro 13 2020 (Intel) running macOS Monterey (12.7.4). I installed the version of Firefox available for download as of writing (v127.0 based on Finder).

i have two computers. on computer 1, all is fine. on computer 2, when it restarted after an update, i got the error message -- "the bookmarks and history system will not be functional b/c one of firefox's files is in use by another application, some security software can cause this problem." this has NEVER happened before.

i found the "how to fix this problem" page, but i am completely baffled by it. what i want to know is what security software (i have avast apps) is likely to have caused this problem, and how do i fix it (i.e., what setting should i change?).

thanks for any help you can provide. i am NOT tech-savvy, this is the only time this has happened, and i've had both computers for years. they have both always had the same apps.

I consistently get this popup when I click on most websites if I want additional information, or to see a more detail. I cannot find any way to get this thing to stop doing that. Does anyone here know about this problem, and to get this thing to stop like period? Thanks for the help....I hope, because it is a real pain. I was using Opera before this, and it never had something like this . Operating System-Windows 11. Browser-Mozilla.

Hi guys, Just wanting to know why the Captcha is so hard. I sometimes need to do the captcha 30-40 times. Can't there be a simpler way to do this. it's very frustrating when I google an address that I need to go to but it takes 15 minutes to get through the captcha. I end up closing Firefox & opening Chrome or Edge. Can something be done about this? Also, Captcha is not clear.. When it comes up with "Motorcycles" is the rider included in this? Or "Stairs" is the hand rail included in that? Please change it to make it simpler so I can continue using Firefox. I'm using Windows 10 on a computer.

Thanks guys

Hello, This is on Win 11, always latest updates to win and FF.

For at least the past 9 months saving anything (web pages, files, etc.) is incredibly slow. I have filed bug reports but nothing back. After starting the save the wheel rotates for 1-2 minutes before finally waking up and saving. FF is completely frozen until its done.

On a second win 11 box, the download are fast but flagged as download failed but the file was actually downloaded

Anyone know anything about this? Like why or how to fix it.

I'm switching to Chrome until this is resolved but I hate Chrome so I hope it will not be a long wait.

Thank you all

Why does attempt at loading a UK Government web page (https://vehicleenquiry.service.gov.uk/) produce a "Secure connectionn failed - Error code: PR_CONNECT_RESET_ERROR" message?

I managed to load the same web page by using Chrome.

This is my crash ID: bp-ff99f648-78ab-4cad-b1f5-7aaa70240902 I've already tried troubleshoot mode, same result. I do have a userContent.css file, but deleting it makes no difference, and I can think of no other major change I've made to my installation.

I would prefer not to have to reinstall Firefox.

Whenever I save a page, it takes two attempts to save correctly. 1st attempt, the page is saved to my bookmarks menu, despite selecting another folder. 2nd attempt, the page save correctly to the folder selected. I was wondering if anyone knew how get my browser back to one save attempt. Thanks for your help!

Firefox is my default browser. I got this message 9/2/2024: Your browser is not currently supported for streaming Live TV and DVR content with DISH Anywhere. Please use a Chrome or Safari browser to access this content. This is the first time I have had this to happen. I have always been able to get Dish Anywhere on Firefox. I called and talked with support for my Dish account and was told that there had been an update on Firefox that has caused this. Is this problem going to be corrected?

Hello, I recently upgraded my iMac and have just ported everything over. Everything seems to be fine except I cannot get Youtube to load properly. Oddly if I google a youtube video it will take me to the video and play ot however I will not see comments, related vids and cannot make fullscreen.

Here are the steps I have taken so far:

1. 1 Confirmed Youtube will work on Safari
2. 2 Updated Firefox
3. 3 Cleared Cache and Cookies
4. 4 Checked the recommended performance settings option
5. 5 Unchecked the recommended performance settings option
6. 6 Confirmed videos still will not load in troubleshooting mode
7. 7 I have no active add-ons running on the browser

Any help would be great!

Hello guys,

The trouble I ll present you might come a bit late, I've just never thought about asking on this forum (didn't even know that it exists lol) and I spent a lot time on tutorials trying to find the solution... lol 😩

My situation : I have a laptop with debian 12 stable. Early July, I updated my apps, Firefox 128 has just been released. Since the Firefox 128 update, I can no longer execute Firefox, I always get the pop up message :

Failed to execute child process (no such file or directory)

I've tried many times to uninstall & reinstall, purge & reinstall. Still the same "failed to execute... " message. all the subsequent updates (128.X and 129.X) haven't solved this problem...

On the other hand, Firefox ESR 128 works like a charm.

Is anyone in the same situation as me ? 😕

Wishing you a nice day :)

Firefox freezes intermittently, and when I examine the situation with Windows' Task Manager, I see a large number of Firefox threads active while I have only two tabs in use, and memory usage running rapidly up to the 50-70% range (I have 16 GB). While I'm not qualified, it seems there may be a memory leak issue. The situation clears itself after a just few or a few tens of seconds, but then may recur within a minute or so. This started a few weeks ago, now happens almost daily and is making Firefox, my preferred browser, somewhat unusable.

My system: Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz 64-bit operating system, x64-based processor Windows 10 Pro OS Build 19045.4842 Firefox Version 115? VPN Windscribe Version 2.10.16

Hello. How do I do if I want Firefox to open a new window every time I click on the icon? I tried to insert the command "-new-window URL", which used to work before but it doesn´t anymore. Is there anybody out there who knows something about this?

Somebody better answer me as I am about to switch my default browser from Firefox to something else. I have already asked this question but never received any response. For a long time now I keep running across sites that do not work on Firefox. It can be a streaming site such as Paramount+ or it could be my phone service site Ting. In all of the cases and there have been quite a few I am always able to find another browser the sites will work on. 9 times out of 10 they will work on Chrome but I have found at least one that does not work there but will work on Edge. So, right now Edge is the prime candidate to switch to. I do not want to quit as it would be a pain in the ass as I have been a loyal user for at least 15 years and have stuck with you as I believe in what you are doing and represent but it is becoming to much of a pain to continue using you because I like the convenience of using only 1 browser 99% of the time. I hope to hear from somebody this time. If not I won't be here for much longer. Thanks, Bruce Hansen [email removed from public forum]

i got this long bookmarklet https://pastebin.com/MZmzEy5C and its working on google chrome but not on firefox when i add it on firefox nothing happens no errors too so whats wrong? thanks for advance replies, btw this bookmarklet is use for my huawei modem web control panel it adds a lot of functionality to it