Diễn đàn hỗ trợ Firefox

I can't see payment methods or credit card info in settings, there's no option Autofill and there is no Saved payment methods button I have added CY (my country CYPRUS) in about:config extensions.formautofill.creditCards.supportedCountries still not working

I reinstalled my pc and when I log back my firefox browser, I can sync everything back, but not the content in my Notes extension, I really need that and can anyone help me how to recover those notes?

Hello

I'm facing a frustrating problem. I asked an AI the following:

Firefox Developer Edition (v145.0.2) on Windows 11 host machine can play udemy.com videos but Firefox Developer Edition (v146.0b9) on Windows hyper-v virtual machine cannot.

I suspect the cause is due to either settings or the virtualisation Hyper-V. Other browsers (Edge, Brave) on the virtual machine can play udemy.com videos with no problems.

Gemini said: This is likely caused by a specific change introduced in Firefox Nightly/Beta (v146) regarding how it handles video decoding on Windows.

The Short Answer: Firefox v146 enabled FFmpeg-based hardware video decoding by default on Windows (previously it relied almost exclusively on Windows Media Foundation). This experimental feature often conflicts with the virtualized graphics drivers (Hyper-V Video) used in your VM, causing the player to fail (black screen or error) while audio might still work or the player simply refuses to load.

Is this true?

In the standart view of a video, the feature works, but not in fullscreen. In Chrome it also works in fullscreen. Firefox should have support for it since v126 or so, im on v145

in the last three days or so, the pop up window in FF where I would find the copy, paste etc has its script disapearing. it shows some space in black, and if I hit it just right I can still open a new window for example, even tho the script for that programming is no longer there. does anybody have an idea? I am fully updated mint user, it is starting to be bother some, do I need to deinstall/reinstally?, I would prefer not to, sigh, but I certainly wouldn't want to do it if it won't fix the issue Thank you for any suggestions

Hello, So I have chosen Firefox as my default for 10 years now over the others. Lately every time you guys update I can't play videos from Starz and Paramount. First one update ruined Starz and now this past update ruined Paramount. YouTube plays fine and Netflix play fine.. Network TV stations play fine (CBS, NBC, Fox, & ABC). Now no matter what I do as far as setting I can't get videos to play on those 2 Platform

I want to delete/remove subject folder from my Windows 11 desktop. I did not create this folder; it suddenly appeared after I reinstalled the Firefox browser. These are the steps I am using in the deletion process: I right click on the folder and click on the delete icon. At the top of the window it says "Folder Access Denied." (Image 1) Below that it says, "You'll need to provide administrator permission to delete this folder." If I click on the "Continue" button, then the error message changes to "You require permission from OWNER/(me) ... to make changes to this folder." (Image 3) The permissions for this folder listed in the "Security" tab lists three groups: 1. "SYSTEM," 2. "F... S... (...@ Outlook.com)" and 3. "Administrators (Owners/Administrators)." All the foregoing have full control and modify control for this folder. The "More details" seen in Images 1 and 3 is grayed out so I cannot get any additional information. How can I delete this unnecessary and data hogging folder? Thank you all very much in advance to all that chose to respond.

Hello  I have read all the recovery related articles in the help section of the site and if there was a way to recover, I have tested it. I ask my question once again:  How is it possible that after I log in to Mozilla Firefox and sync my account, instead of recovering the information, all of it is deleted from other connected devices as well? I didn't even have time to make any changes in the sync menu and my account, and as soon as the sync was done, instead of recovering the information on the device that I had just synced, the information was deleted from my old devices such as my Android mobile phone, without my intervention. This is a very big and important problem and rest assured that there is no explanation in the help section about this. Please understand the problem and refrain from sending me links to re-read all the articles I've read.

I just bought new PC and switched to win11(never happened on win10). Videos stutter when on 2nd monitor and game is open on first, but audio doesn't. Problem goes away immediately when clicking to the firefox window. Happens on both youtube and twitch, but not on Nebula.tv and not on chrome. Doesn't happen if the video is 480p, but does on 720 and 1080 and both of them are 60fps which might be something. Also doesn't happen if the game is windowed, but does on fullscreen and borderless.

I've disabled hardware acceleration (in windows and browser). I've tried setting both monitors to 60hz, setting firefox priority to high (and game to low), disabling effiency mode, setting power mode to performance and tried a lot of other things including about:config settings. Also ruled out extensions.

CPU: AMD Ryzen 7 9700X GPU: RTX5070 1st monitor: 180hz 2nd: 80hz

On a new computer, I entered a new Mozilla password, and Mozilla on new computer won't sync with my old bookmarks, which still are on old computer.

Sync doesn't add these bookmarks.

Both computers now sign in with new PW. I can't go back to old PW (doesn't have current standards).

How to get sync to work, and get my bookmarks on new computer?

Incoming messages on Firefox display is quite small as compared to Microsoft Edge and I cannot seem to enlarge as I do not see a "zoom" icon. When

I highlight the words, they are Arial font size 14 but visually they are not.  How do I zoom and default the window size? Here is a frame shot.