Diễn đàn hỗ trợ Firefox

I'm using Firefox as my default browser, and I saw a link preview for YouTube (on tumblr, if it matters) that displayed the message 'Your browser is deprecated. Please upgrade' instead of the actual video title. What does this mean?

There used to be a much more useful interface for clearing specific browsing data (the landscape-oriented one). The new interface is far less detailed to the point of strictly limiting its functionality. There used to be a config setting ("privacy.sanitize.useOldClearHistoryDialog") that could toggle which interface to use, but as of an update in the last week (I've been away without a computer for a while), that toggle does nothing. Is there any other setting that can make this feature actually useful again?

Hi, I am using Firefox exclusively for my work Claude account, I only check my usage on it. Today, I noticed Firefox silently installed a webapp under $USER/AppData/Roaming/Microsoft/Windows/Start Menu/Programs, and it has a Claude webapp, which I neither click any install or add to my menu. I found it extremely concerning in terms of privacy, and I am wondering if any other people have similar experience.

I am wondering what was the exact reason for disabling the 600% volume extension.

Should the users be worried about credential theft or was the extension injecting affiliate links?

Recently I've had this issue (on reddit) where after I expand a video in the feed, and start scrolling, all the visuals freeze.

I know it's only the visuals, because I can still interact with the website (usually unexpand the video, or pause it) with the image still frozen and audio still playing.

I can fix it by tabbing firefox down, and then up again. While researching I found the profiler, and finally managed to capture the moment it happened.

I'm no stranger to technical stuff but it's a loooot of data to process, I did a "clean" profile recording as well where I did the same action and where it didn't freeze, and I can't really make heads or tails out of what the issue is.

The recording managed to capture the phenomenon and I only clicked twice during that period, to expand two reddit expando videos, the second one is what caused the issue when scrolling. The only thing I see is a spike in memory usage

Not sure if I can (or should) upload the profile recording here or what, but it's been bugging me a lot.

It's pretty tricky to replicate because it seems to be random when and what triggers it, even expanding the same videos doesn't replicate it. Sometimes I go days without it happening, sometimes it happens 6 times in a single session.

I've added some screenshots of various views of the profiler/stack data.

I have an Nvidia RTX 5070ti GPU, hardware acceleration is on, AMD Ryzen 7 9800X3D processor.

I think I might have enabled some rendering settings in about:config, maybe it's related to that but I don't remember exactly what.

Maybe it's due to some windows "game optimisation" or the GPU and CPU-GPU fighting?

I have no problems watching videos while playing games or anything though.

Hello Mozilla Firefox Support,

I am experiencing an issue with my Firefox browser where my Firefox home page appears very blurry. This has raised some concerns for me about whether something may be wrong with my browser or if my Firefox security may have been compromised.

I would appreciate it if you could help look into this issue or provide guidance on what might be causing the blurry display on my home page. I want to make sure my browser is secure and functioning properly.

Please let me know if there are any troubleshooting steps I should follow to resolve this problem or to verify that my Firefox browser has not been compromised.

Thank you for your assistance.

All the icons in my Bookmark Toolbar have been working great with no errors for several years, through countless updates with no problem. Then, recently I noticed all the icons lost the color icons and just show as a wire globe. Clicking on them, any one of them, they all go to the same website. If I remove them, got to the website I want there, and drag the URL to the bookmark bar, things are back to normal for that icon. So I replaced each one, and the next day, when I open Firefox, all the icons are again wire globes. It seems that Firefox will not retain the URL for any of the icons.

Very strange.

As the title says, today I started getting the windows popup about selecting an app to open that file type, every time I download one.

Edit: I figured it out

I recently downloaded the ebay app onto my Android phone. Since doing so, when I go to my ebay account on my PC, I cannot put items in My Cart nor can I BUY NOW. The selector arrow does not change to a Hand icon. Everything works as it should on my phone. Contacted ebay support which attempted to correct by having me clear browsing history with no success. They informed me that it was a problem with my browser (Firefox). Any info or suggestions would be well appreciated.

1. 1. Steps to reproduce

Open several tabs, in settings, check «ouvrir les fenêtres et onglets précédents», quit firefox.

1. 1. 1. Expected behavior

On startup, Firefox should reopen with the same tabs before shutdown.

1. 1. 1. Actual behavior

Firefox opens with one empty tab. Forcing me to got to «history -> recently closed windows -> restore» everytime I quit Firefox or shutdown the mac.

1. 1. 1. Device & build information

• Device: MacOs Tahoe 26
• Build version: firefox 148.0.2
• First seen version: MacOs Sequoia

1. 1. 1. Notes

Fresh migration from Win 11 to Mac. tabs, passwords, bookmarks, plugins migrated from win to mac. Attachments:

I routinely keep a tab open to view my iCloud account (PC running Windows 11 Home).

Everything has worked just fine in the past. Here are the basics using Edge... -The home page displays like the first attachment. -Clicking an icon takes me to the calendar page (see the Edge screenshot in the second attachment) -Clicking the word, 'iCloud' (see yellow arrow in second attachment) returns me to the home page.

But now, using Firefox, if I click the calendar icon (or any other) the calendar return link and Calendar page title are superimposed over one another and the return link does not work. -Check out the yellow arrow in the third attachment -If I click the iCloud/Calendar mishmash I get nothing. If I click left arrow or Back I get nothing.

Note that this still works fine with Edge but does not work with Firefox. Have tried clearing Firefox cache (no change) but don't know what else to try.

Any ideas?

I already changed the password but I’d be glad to know if there is anything I could do or anything you could tell me about the person who entered my Firefox, the person is apparently from Russia, I’ll attach the image below.

I really appreciate Firefox's built in translator; it is extremely helpful. However there is one thing that bugs me, when translating a page that has multiple language options. For example, when translating a page from German to English, the word "Deutsch" (often listed in the website's built in language settings) is translated not to "German", but to "English". While technically correct in that the page is now displaying English thanks to the Firefox translation, it would probably be better to show "German" so that it is easier to switch the website language and not have a duplicate "English" option in the website's dropdown menu. I have noticed this on multiple websites, specifically with German, but it might be with other languages as well. Hopefully this explanation of the issue makes sense, and see my attached screenshot which shows this issue. Please let me know if there is somewhere else I should submit this too.

Until some days ago I could use the add on "Video Downloadhelper" without problems on my old Macbook Air (2017) with OS10.15.7 but suddenly the add on was not available anymore. I purchased a valid license for this add on. In the Firefox adjustments it was mentioned as deactivated. Could you please let me know, how I can activate the Video Downloadhelper again? Thanking you in advance for your kind support. Sincerely, Ulf Gaertner