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There was an update posted today. I ran the update this morning. Now Firefox will not open.

error platform version 127.0.1 not compatible with miniversion >= 127.0

                                                                                  miniversion <= 127.0

Running Windows 10 Version 10.0.19045 Build 19045 64 bit Should I remove and reload program?

Hi,

For some time now, when I download a .pptx, .xlsx og .docx Firefox changes the file format to .pdf when downloading the file. I then have to manually choose the correct app for opening the file, overrule error messages and delete the ".pdf" when re-saving the file even though it recognises it is not really a pdf file.

I've tried to change the Firefox settings, clearing cache, restarting or deleting in config and other small attempts to reboot whatever suddenly started to cause this problem. As far as I can see, it is not an unknown issue, but I've not yet been able to find a solution to my problem, which is getting on my nerves.

Hope you can be of help.

Out of nowhere a couple days ago Firefox started loading local html files extremely slowly. I was using Live Server to render the pages, so I turned that on and off, uninstalled and reinstalled to no avail. I tried dragging files in from the original folder on my computer, but even that doesn't work. I tried updating firefox, and then my computer (which is running Fedora Linux 40), but still nothing.

When I try hitting inspect on the page, it only loads the HTML but doesn't let me inspect the JS as it wont load, and it's saying I have a ton of errors too. I can't look at the errors because they wont load, but I know it doesn't have to do with the original file as there was only one error which the page was working fine with before and each time I try opening the file it gives me a different amount of errors.

I tried clearing my cache and cookies, which didn't work either.

Does anyone know how to fix this? I'm having no other errors on other pages.

I am running Mac Big Sur, 11.7.10. When I am in Firefox version 127.0.2 and I go into any Google search, the tab crashes. It works in private browsing mode and also in other browsers but not in non-private browsing in Firefox. I have tried disabling extensions, add ons, etc. Nothing seems to help. This started happening a few weeks ago with any YouTube page also. How can I fix this? If I can't I will stop using Firefox as I cannot function like this. Please advise!

Hi, I hit Foxfire icon, I get XUL Runner message,

Error Platform Version 127.0.1 is not compatible with mini version ] = 127.0 and max version ] = 127.0

How do I correct and gain access!!???

Please help, definitely liked days of yore when one could call.

Andrew

FireFox just updated itself to the latest version (127.0.1 (64 bit)) on my Windows 10 laptop. Now every time I try to close it, instead of closing, it starts a background process and then crashes after about 25 seconds.

YouTube has been so slow in Firefox. It just takes a ton of time for the video to actually play. It's just a spinning circle in a video. I can refresh several times and then it plays. I cleared my cache, history, data...etc everything from Firefox. That seemed to help for a bit. Then it just resulted back to being slow. It's just in Firefox. I played videos in Edge. It was fine. No issues. It's just FireFox. It started most recently too. It wasn't happening a week ago. I even tried going back to an old version of Firefox. Didn't help. Anyone know how to fix? Not using ad blockers either FYI. I just want videos to play normally and fast.

In Firefox, after a reboot, how can I re-open my previous sessions?

Originally I had quite a lot of open browsers & tabs. Then I needed to do a reboot, and now I've lost those previous sessions.

Usually I just open Firefox, and this opens one browser, and then all of my previous browser, and tabs reopen, but this time Firefox crashed, and its popup said it needed to restart, but it would re-open my previous browser and tabs, but it didn't.

After following the usual Firefox help guides, it still wouldn't re-open my previous sessions. Now if I ask it to open my previous sessions, it just opens the recent help guides, and not anything before the crash.

So is there a backup file of my missing sessions that I can roll back to?

I am finding more and more sites that I regularly go to are no longer working on firefox. One site was because HTML5 apparently does not work on firefox. But others I don't know about why are no longer working on firefox. I thought it might be streaming related but just today I could not access one of my banks on firefox, and I tried many times, but had no problem signing on using Chrome.

hello tried a few things from help docs on line. nothing working. just keeps happening. tabs will say gah. your tab just crashed. works for a bit but once happens.... have to close whole firefox and open again. just started happening yesterday. I have used firefox for many many years never a problem. Something was not updated right. Please tell me how to fix this once and for all. if not I have to leave using firefox this is driving me crazy. terrible. Latest thing I tried was about:config - sandbox changed 2 items, 1 from true to false other from 6 to 0. as listed in this https://www.youtube.com/watch?v=_SIGynLjrjk

nothing has worked. Please help. thank you.

steve [email address].

I still have not had any improvement with tab crashes especially on sites containing videos. Lately, every time i go on Facebook and play a video reel, i stop the video and before i can return to my home page, the tab crashes. This browser has gotten worse rather than improving.

Hi Firefox team

I am Yuki belong to Electronic company IT department. We have a project to implement salesforce for customer facing and target to go live by end of this July. we are facing one issue related with firefox and salesforce.

<issue detail> Our salesforce have customized serach founctions. this search function doesn't work only in firefox browser(Edge, Chorme is ok). we can send input data from salesforce to search, however search result doesn't appear.

<current situation> we were investigating this issue with salesforce. we found this article : https://developer.salesforce.com/docs/platform/lwc/guide/security-lwsec-async.html >When LWS is enabled, JavaScript async functions that are used from a static resource work in Chromium-based browsers, but don't work in Firefox currently. The issue is a bug in Firefox.

<requet to firefox team> Would you solve above bug?

if yes, I would like to know the timeline
if no, I would like to know the reason why you don't solve.

<reference info related with LWS of salesforce> https://developer.salesforce.com/docs/atlas.en-us.exp_cloud_lwr.meta/exp_cloud_lwr/template_differences_locker.htm https://developer.salesforce.com/docs/atlas.en-us.exp_cloud_lwr.meta/exp_cloud_lwr/template_differences_locker.htm

I have used Firefox to access my Zoom accoutnfor several years. Today, the screen goes blank when I click on sign-in. This does not happen with other browsers on my PC. Help....

Please help me.

I made no changes to Firefox. It just stopped working. If I click on the icon I get a momentary hour glass, the hour glass goes away, and Firefox never comes up.

If I try to open it as administrator, it comes up but will not accept any web addresses. I can type in a web address but is doesn't go to the site. The screen just stares at me and does nothing.

Both Edge and Chrome work just fine. I have used Firefox for many years. I love it but has just stopped working. I have reinstalled it several times and the same problem occurs.

Mike Manley [edited phone# and email from public support forum]

Im using Ubuntu 22.04 LTS Intel cpu I7 9th gen NVIDIA gpu but i disabled it My problem is that the Picture in Picture mode isnt sticky if i press anything it vanishes from view.

This problem started yesterday. Whenever I try to connect to a website, I'm met with an error saying "Secure Connection Failed", each time with a different error code. Dropout.tv gives me PR_END_OF_FILE_ERROR, Netflix gives me SSL_ERROR_RX_RECORD_TOO_LONG, DuckDuckGo gives SSL_ERROR_RX_UNEXPECTED_APPLICATION_DATA. This doesn't happen with any website owned by Google, such as YouTube, Google Docs, etc. I don’t know if there are any others that it manages to connect to, but those are the observations I've made. What can I do?