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.: Hello. A couple of days ago Firefox stopped displaying thumbnails of YouTube videos. I tried YouTube on other browsers and the thumbnails appeared as usual. On Firefox, they've disappeared, but only on my Windows 10 computer. The YouTube thumbnails appear on Firefox on my MacBook. The attached graphic shows what it looks like on my Win 10 computer.

Any ideas on how to solve this would be greatly appreciated. I have also searched the Internet and YouTube for a solution, but was unable to find one that works.

Thank you.

Firefox doesn't have my new credit card account number. My old card was compromised and replaced with a new card and account number. But Firefox still maintains my old account number and it insists on auto-filling my cancelled card number when placing an order on line. How do I update my credit card information, or how do I delete the cancelled card number?

Hello,

I disabled the AI summarizer almost immediately after seeing it because:

1. It was not able to summarize the page
2. It blocked the information I actually needed to see on the page

However, shortly after disabling it I got a pop-up ad advertising the feature! (attached)

Related Question: Want to remove or disable AI summarizer

Collections bookmarks on the Firefox for Android homepage. I have Firefox sync. I have many regular bookmarks. Collections bookmarks from Android or obviously not available or synced with my Firefox for desktop. Are they synced or backed up at all anywhere? I cannot find them other than inside Collections. If I uninstall Firefox on my Android, Google Pixel phone and reinstall it will everything in the homepage collections be lost?

Reporting a bug:

"Firefox can’t update your languages right now. Check that you are connected to the internet or try again." but - Connection is established, INDEED!

German language pack not available :( manually downloaded verisons of german Language pack are incompatible.

please fix.

I can browse and go to websites, but the "back" button is inoperative and the "refresh" buttton is inoperative on my latest Firefox install ... as is the "menu" tab at the top right of the page and everything else at the top (except for the "downloads" tab ... that works, everything else at the top is inoperative

in addition: I get my "home page" set with the links I want (and none that I don't want) and sometimes when I go to a website that I rarely visit, it tosses a "new favorite link" into what I already have customized

also, the "finish setup" tab just below that on the right side is still "active" even though I've finished setup, etc

seem to some or several glitches in this version

thanks for any help

Wolf

[edited email from public]

I recently installed Win 11 on a new Acer Aspire (with MSI MAG244F monitor) but the issue seems to be present on my Acer Nitro 5 with built-in monitor as well.

I don't think it's an Acer issue but I am only running Win 11 on the two Acer machines. If I open a web page with colored graphics or pictures and then drop down a menu of the browser (bookmarks, etc.) the colors of the graphics bleed through. It's annoying and somewhat obstructive. It does not occur if a window from a different app is opened on top of the browser window no matter how bright the colors are.

I attached a few edited screenshots to show the issue. The edits are only to cover personal information etc.

The issue seems to be color saturation and does not occur on my other Win 10 machines or in other browsers. Not even the same version Firefox on the Win 10 machines.

Is there a way to increase the opacity of the drop downs or lower the color saturation in the Firefox browser?

How do I remove a shortcut from the Firefox address bar? I understand that I can "uncheck search, address bar, and shortcuts" in Firefox settings, but I think this just hides them, so I wanted to solve the problem fundamentally and asked for advice. Please tell me how to completely remove shortcut URLs from the address bar.

Javascript is not working in my firefox. Even going into settings to enable java script doesn't work, because it says java script is enabled. But the webpages tell me that they need javascript enabled in order to work.

As title: after running updates, Firefox consistently crashes when launching.

To give more concrete details:

-Running on Linux, specifically KDE Fedora 42. Firefox was updated to 142 from 141, alongside various other updates. -When launching Firefox from any source (directly, through a link, through the terminal etc.), the only window that appears is the crash reporter. -This issue occurs when launching in safe mode. Removing and reinstalling Firefox, including deleting the entire .mozilla folder in Home at the same time does not resolve the issue. I am unable to test rolling Firefox back to 141. -When attempting to launch from the terminal (safe mode or otherwise), the following is output (personal info redacted):

restorecon: SELinux: Could not get canonical path for /home/[username]/.mozilla/firefox/*/gmp-widevinecdm/* restorecon: No such file or directory.

/usr/include/c++/15/array:210: constexpr std::array<_Tp, _Nm>::value_type& std::array<_Tp, _Nm>::operator[](size_type) [with _Tp = HeaderBarButtonType; long unsigned int _Nm = 3; reference = HeaderBarButtonType&; size_type = long unsigned int]: Assertion '__n < this->size()' failed.

Redirecting call to abort() to mozalloc_abort

[ExceptionHandler generates a minidump etc.]

Gtk-Message: [timestamp]: Failed to load module "appmenu-gtk-module"

(I would note that to the best of my knowledge I had not included a plugin for decoding widevine in my Firefox setup, and certainly the Firefox 141 instance on the device being used to write this post (same OS) does not include it) -The crash files in the .mozilla folder, meanwhile, consistently list a segfault at address 0x0.

Any advice on diagnosing/solving this issue would be greatly appreciated. Let me know if there's any other information that would be helpful.

If it would be more appropriate, I could report this through Mozilla's bugzilla instance, but given the issue seems to be very niche (Fedora's ABRT shows a total of 5 unique affected users in the last few days) I am unsure whether flagging this there would be appropriate.

From: [ or ] To: "Conrad Szablewski" <etcetcetc73@earthlink.net> Subject: [ DuckDuckGo Privacy Weekly ] For Aug 28, 2025 Date: Aug 28, 2025 8:43 AM

DuckDuckGo Privacy Weekly

   DuckDuckGo Privacy Features: The Fire Button [duckduckgo.com]
   Ever wish you could wipe the slate clean online? Our Fire Button burns away traces of websites that you’ve visited (like cookies and website caches), browsing session information (like open tabs and URL history), and permissions you’ve granted to websites (like geolocation, camera, and microphone settings).

I'm having issues using Firefox with the Facebook site. Groups are slow to load and sometimes the chat and notification windows take forever to load with shimmering panels or a wait cursor displayed. I've cleared the cache and deleted the cookie, but that didn't rectify the issue. I don't have a problem with Edge.

I've gone through the various troubleshooting options over the last month or so and Firefox is still crashing constantly for me, even in Troubleshooting mode. The tabs crash when I'm using a Google Doc, YouTube, Discord, doesn't matter the site; I've submitted about 20 crash reports this morning alone and failed to submit several more:

https://crash-stats.mozilla.org/report/index/ced7bd3d-a768-4ada-a473-127fb0250827 https://crash-stats.mozilla.org/report/index/3886acf3-500e-406b-ab03-77b390250827 https://crash-stats.mozilla.org/report/index/bf00f2f0-4d1a-4364-b369-945170250827 https://crash-stats.mozilla.org/report/index/8568b66f-2058-45bd-a5aa-904540250827 https://crash-stats.mozilla.org/report/index/b651d050-ff74-40bd-ae42-1d4230250827 https://crash-stats.mozilla.org/report/index/b5e446ea-ed00-44cd-b68e-61dd80250827 https://crash-stats.mozilla.org/report/index/7febd586-de43-421a-b3c4-87f230250827 https://crash-stats.mozilla.org/report/index/bcc5ba90-f508-4349-aba1-e0baf0250827

Any help on this would be greatly appreciated!