Firefox Community Forum

I recently opened Firefox to see a new flagged warning under my toolbar that says "The security sandbox is disabled. Your configuration is unsupported and less secure."

I have gone into about:config and adjusted every security.sandbox element to see if that would change anything; it did not.

I am running on Windows 11 Home so I cannot install or properly run Windows Sandbox.

I would either like a solution to enable the sandbox once again, or just remove the notification from the toolbar.

Locking this thread as duplicate, please continue here: [/questions/1571294]
سلام! 👋 با توجه به تصویری که فرستادی، اینجا دو تا کادر داری:

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✅ کادر اول: Summarize your question

(خلاصه سوال در یک جمله)

این متنی که الان نوشتی عالیه، همون رو می‌تونی کامل کنی:

When I play YouTube videos in Firefox, they are constantly choppy and laggy.

اگه خواستی کامل‌تر باشه:

YouTube videos are choppy and laggy in Firefox even though other browsers work fine.

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✅ کادر آخر: How can we help?

(توضیح کامل مشکل)

اینجا می‌تونی با جزئیات بیشتر بنویسی، مثلاً:

When I play YouTube videos in Firefox, they are constantly choppy and slow, even though my internet connection is fine and other browsers (like Chrome) work smoothly. This happens with both HD and lower quality videos. I've already tried clearing cache and disabling extensions, but the issue persists. Please help me fix this.

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.

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.

bold text how to stop address bar search. its very wrong you have a fake search bar in the screen i want to search from a search bar not the address bar

I can't open Firefox at all, so I downloaded Firefox again, before I got your message. The Crash ID: ⁨bp-958359b9-d3d4-4cba-aa19-4dcbc0260313⁩

That is the only one, not five crash ID's. I couldn't open Firefox to find an omni.ja file.

I can't import or access my bookmarks or passwords on the new Firefox I installed. Would you please be able to help with that?

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

Dear Mozilla Support Team,

I have downloaded Firefox through the official website and I have installed it through the terminal for Chromebook's Debian Linux.

I have a Chromebook c214ma with a Intel Celeron 4020 with 4 GB ram every single browser on my machine works properly just Firefox keeps closing and crashing

Kindly fix this issue

Regards,

Pranav

i need the 'home' button. it is not included in the 'customize' items so that doesn't work, as it is not actually there with the other items. please tell me how to get it. thanks. it's ridiculous working without one.

We hereby approve the use of Mozilla Firefox as an official web browser for daily operations. Mozilla provides strong security features, regular updates, and reliable performance. Its open-source foundation ensures transparency and flexibility, making it a trustworthy platform to support productivity, data protection, and efficient online communication within our organization.

Hello again. Yous answer Did you check the backups in the bookmarkbackups folder in the profile folder to see if there is a recent backup with a promissing bookmarks count?

My reply No ints empty

When v143 was released something happened to the shortcuts row(s). Regardless of refreshing efforts, rolling back versions, and searching the forums, there's no way to consistently get the shortcuts back. Sometimes they appear with a new browser instance, sometimes they don't. They don't appear with new tabs, and they don't stay when they do appear with a new browser. Grrrr. Please restore the shortcuts!

I updated firefox through apt, and since then, have not been able to log into twitch I am on ubuntu 24

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Attempting to log in returns the generic "Your browser is not currently supported"

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Thanks for your help! Cindy

I read the existing articles and followed them, starting with "manage bookmarks". When I click on restore, there is a list of the last 15 backups by date. EVERY one of them results in an error message "unable to process the file".

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Please help

Why has Video Download Helper v9 by Michel Guteriezze been replaced by Video Download Helper by vdh? The original versions were perfect. The VDH version 10 vdh is straight junk!