Diễn đàn hỗ trợ Firefox

I am encountering more and more websites with problems they attribute to Firefox. Many of them recommend using Chrome or Edge and some insist upon it or they will no longer support problems. Direct TV will no longer work with Firefox at all and they will not fix it. Several of my other regular websites will work partially, but have pages that simply will not work with Firefox. I have resisted using Chrome or Edge for years but it is getting harder and harder to do as on line systems continue to have problems with Firefox and their only suggestion is to use Chrome (which works when Firefox doesn't). Any ideas/suggestions?

When I play a video in fullscreen and type something, when I typed something in the IME and will press Esc to quit the IME, the whole fullscreen will be quitted. The expected behavior is to quit the IME only, and the fullscreen should be quitted only when there is no IMEs.

The issue has been existing for years.

Hyperlinks keep opening in new windows, not in the same/existing window where they were selected. Issue is not unique to Google Search results and occurring across multiple websites. At wits end trying to figure this one out. I have deselected the "Open links in tabs instead of new windows", turned off all extensions, and uninstalled & reinstalled Firefox. Issue is still occurring. Attached is image of my tab selections showing all turned off.

The last 2 days when I have shut down my computer then restarted, my Firefox profile has disappeared, along with all my bookmarks, passwords etc. I spent several hours yesterday following all the advice here to get everything back, but nothing worked. I had to create a new profile and then import an old passwords file, which I luckily had saved in Excel. This morning when I switched the computer on, the same thing has happened. I cannot even open Firefox without creating a new profile. I get a pop up box (screenshot attached), which shows no profiles, and i have to create a new one to even open Firefox. Every time I close out of Firefox and want to go back in, I am asked to choose a profile. This has never happened before.Before i give up forever on Firefox and go over to another browser, do you have any ideas how i can stop this from happening, and get my original profile, passwords, bookmarks etc back? Thanks.

I am attempting to access a website https://my.calbrightcollege.edu/ however when i attempt to sign in i get kicked out with the message below.

Something doesn't look right!

Refresh the page to reload the student portal.

Or contact support at 1-833-956-0225 or email us at success@calbright.org.

I reached out and was advised could be something wrong with the software however I believe I have the latest software as i just downloaded the browser today. I am also able to access the same site on my phone and my IPAD not sure why it wont work here.

This afternoon, I clicked on a link from an email and for the first time got a choose a profile pop-up. I do not want this; I have read info on Mozilla and elsewhere about its purpose but it doesn't say how to just stop the pop-up - there should be an option just stop the pop-up because I don;t want to have to choose amongst options. I have started copy-pasting the links in emails and going to Chrome and will seriously have to reconsider using Firefox of this continues. I don't want to have to type about:config or anything - this should have been an opt out or opt in thing and I want out. Thank you for your help.

Windows 11 : Fix this ASAP I delete all tabs, close firefox, reopen and I get 5 tabs which seem to be STUCK. I delete 3 of these tabs, go about my work, none of those 3 are open, and I shut everything down. When I reopen Firefox, those 5 "default tabs" (the 3 I don't want have migrated over from I don't know were - both Chrome and Edge open with New Tab.)

I have enough other problems in my life - and done't tell me to create a new profile. At that point I'll kill firefox and end my donations to Mozilla.

This is the message I receive. There is no way a novice could follow these - that's why I am writing.

Secure Connection Failed

An error occurred during a connection to playeuchre-online.com. PR_END_OF_FILE_ERROR

Error code: PR_END_OF_FILE_ERROR

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

It happens on all my sights, ie: Facebook, etc.

Tonight Firefox updated itself and when the routine finished the new default-release profile did not contain any of my data including bookmarks.

I tried to launch the profile default in a new browser but this was empty too.

can anyone help me locate my data and restore it in the new profile?

I continually get error messages for webpages. I turn off my VPN, clear my history. Not sure what else I need to do. Last one was the webpage for Lindt Chocolate. Come on. Why am I getting error messages for this? I have been on this page before. There are other places also, like Macys. Getting fed up with Firefox.

It has been two times now where I will open firefox and suddenly all my profiles are gone. I have tried everything to try to get them back like trying to get "old firefox data" back or about:profiles, but there is literally nothing to recover. All of my bookmarks and passwords are fine but I have to log in to everything all over again and reset my home page with all my shortcuts. it is extremely annoying, especially when I use up all the shortcut spaces. It prompts me when I start firefox to create a profile, sign in again, and set firefox as my preferred browser. I have been using firefox for about a year and havent had this problem until a couple of weeks ago. What can i do to avoid having to do this again in the future?

I got a new desktop computer and can't access firefox. My existing account is still under my old email ([edited] @q.com) and has been decommisioned. My new email is [edited] @myctl.net. I cannot sign in because I forgot my password for q.com which no longer exists, so I can't receive an email to change password. I am at a loss how to fix this... Can you help me please. I had sent you my new email back a few months ago so I thought it had been changed to myctl.net but it is not. help please, I am so frustrated. thx for your help

Hello, i let called it very long terms Firefox user i've been using Firefox to livestream especially on this website : www.showroom-live.com

somehow about since 3 months ago i believe (or start at 2026) suddenly i can't stream on firefox again but all other browser that i tested are worked just fine

it gave blackscreen like ss that i attached. even tried on fresh installed Firefox for android too

to be honest i love feature of firefox that i can pop-out PIP windows all more than 1 and even gave full screen of that PIP

i tried every suggest that appeared on website like Disable Enhanced Tracking Protection, turning off hardware acceleration, clear cookies, autoplay are on ALLOW, doing safemode check also make that black screen, even check about:config media.mediasource.enabled (set to true),DRM ON

my system : AMD 7600x, memory 16GB,GPU : RTX3060, Windows 11

thanks before i hope i got solution

Wenn ich mich auf einigen Seiten anmelden möchte, erscheint dann dieses Fenster: ' Zum synchronisieren anmelden' 'und probieren sie andere Schutzwerkzeuge von Mozilla aus'. Ich möchte nichts davon, ich möchte mich nur ganz normal anmelden.

I have just downloaded NordPass Password Manager. I think I have added an extension for this in Firefox, but I can't tell if it has been successfully added.

I am using Windows 11 Home Version 25H2 OS Build 26200.8037 64 bit operating system

My sound does not work when using Firefox. But when I switch to the troubleshooting mode in the "Help" menu, the sound works normally. I did not make any changes to sound settings. Sound was fine last night and did not work when I woke the computer up this morning. I am using Windows 11. Going from troubleshooting mode back to normal mode causes the sound to stop working again.

I'm getting the message "It looks like you have a browser extension that might be interfering with Microsoft Advertising tools. Please disable this extension." I don't have any extensions. I can't use their site until this is fixed. I chatted with Microsoft and they directed me to Firefox.