Diễn đàn hỗ trợ Firefox

A help page on Amazon claims Firefox can play Amazon Prime videos, yet I got a pop-up window at the beginning of the movie (not the TV series) "Downton Abbey," which I purchased in 2022, saying my browser doesn't support HD because of content. That's a paraphrase of a window that flashed on the screen and disappeared before I could take a screenshot. The window linked to a page that said Firefox browser CAN play Amazon Prime videos. So the window makes no sense to me.

Does Firefox support HD videos overall? Is there some restriction for content (whatever Amazon means by that)?

I am trying to troubleshoot a problem with high CPU usage by Firefox when using Mozilla VPN - VPN ON.. Problem occurs when starting in Safe Mode, and still occurs after performing Refresh. Problem can also occur just by changing to a new tab. Problem does not occur if Mozilla VPN is turned OFF. Problem does not occur with Microsoft Edge. Mozilla VPN Support said it is a Firefox issue, and recommended contacting Firefox if safe start or refresh did not help.

Below is a link to a startup session. https://share.firefox.dev/3DEft5k

Hoping that someone can help me solve this issue. Thanks! Device name GGDesktop Processor 13th Gen Intel(R) Core(TM) i5-13400 2.50 GHz Installed RAM 32.0 GB (31.7 GB usable) Device ID 71FFA399-5A1A-448B-892C-99CEE4F5A88A Product ID 00330-80000-00000-AA007 System type 64-bit operating system, x64-based processor Pen and touch No pen or touch input is available for this display

Edition Windows 11 Pro Version 24H2 Installed on ‎12/‎14/‎2024 OS build 26100.2605 Experience Windows Feature Experience Pack 1000.26100.36.0

Whenever I restart Firefox, it uses about 30% of my RAM, however this increases over time and after a week it can be over 60%. No new extensions, tabs, windows opened, nothing changed from usage of day 1 to day 7. I have attempted everything in the support post for Firefox taking up too much RAM, and nothing has led to longterm solutions. This issue originally started about 2 months ago so it hasn't been consistent, but I haven't changed anything either in my browsing habits or the hardware of my computer to causes this change. Hardware acceleration is off, and using the same extensions (and more) on other browsers doesn't result in the same problem on those browsers. The problem is worst by far when I'm using YouTube.

I'm trying to run Firefox in a vm and expose it for remote connections to access from puppeteer.

"firefox --headless --remote-debugging-port=9222 --remote-debugging-host=0.0.0.0 --remote-allow-hosts=x.x.x.x " - This is the command I'm using to launch the browser but the Firefox is listening on 127.0.0.1 only. And accepts only calls from the local machine. Despite many efforts I'm not able to make Firefox listens to my public ip or 0.0.0.0. This is the output I'm getting while launching

"*** You are running in headless mode. [GFX1-]: glxtest: Unable to open a connection to the X server WebDriver BiDi listening on ws://127.0.0.1:9222 [GFX1-]: RenderCompositorSWGL failed mapping default framebuffer, no dt"

With chrome I'm able to achieve the above use case. Chrome listens on 0.0.0.0 when adding the --remote-debugging-address "google-chrome --no-sandbox --headless --remote-debugging-port=9222 --remote-debugging-address=0.0.0.0".

I have limited control over the vm so I can't use ssh tunnel as well. Are there any solutions available to make Firefox listens to the public IP like chrome?

Hi: Recently Firefox, latest release now, won't show the Taskbar when the cursor is moved to the bottom of the screen. I have no addons or themes installed, ie, plain vanilla Firefox. If I start Firefox in troubleshoot mode it works properly. Any help please? Thanks Donald

Why would some of my pages be appearing in Polish? Apparently I did have an privacy issue about a week ago but changed my password and since then I mostly have to change the language from Polish to English each time I open Firefox. Any suggestions? Thanks in advance

The search box on the home screen that appears below the Google logo cannot be cleared. It was a simple matter a few days ago but now it does not work. When I Clear All History, the history in the search box remains.