Diễn đàn hỗ trợ Firefox

Hi everyone, I run a website, which provides information about mobile phone prices and SIM packages in Bangladesh. I’ve been working on improving page load speed using LiteSpeed Cache and Cloudflare CDN. While it works well in Chrome, I’ve noticed that Firefox doesn’t always cache pages or static assets (like images and CSS) as effectively. Does Firefox handle cache-control headers or service workers differently than other browsers? I’d also love any advice on best practices for implementing browser caching or service worker scripts that improve performance on Firefox without causing outdated content issues. Thanks for your time and any insights!

Hello Mozilla Support Team, I manage the official website of ITTP, which provides information about our JBT from Haryana JBT from Haryana course. Recently, I noticed that the website isn’t working properly on the Mozilla Firefox browser. Some pages load slowly, and certain design elements like buttons and banners are not displaying correctly, even though the site works fine on Chrome and Edge.

I’ve already cleared cache, checked extensions, and verified that our SSL and JavaScript files are properly configured. Still, the issue continues on Firefox across multiple devices.

Could this be related to compatibility settings, outdated scripts, or browser-specific rendering issues? I’d really appreciate any guidance or troubleshooting steps to ensure the ITTP site runs smoothly for users searching for JBT from Haryana information.

Thank you for your help!

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On my previous laptop using Windows 11, a dialog box would open when I entered a username and password while online, asking if I wanted to save the username and password. On my brand new laptop, that dialog box does not come on screen. Id like to be able to store that info so I don't have to enter it each time.

Thanks!

2 days ago you tube is suddenly blocked. 11/6/2025 i would click a video, it would "blink" at me and do nothing. i updated firefox, ublock was updated about a month ago and now i can't even get a home page to load. i have refreshed and restarted

Hello, on my local disk I have Firefox for Windows (10) installed for more than 2 years now, and the location: %Appdata%\Roaming\Mozilla\Firefox\Profiles\xxxxxxxx.deault-release\storage\to-be-removed has more than 7000 subfolders and files that sums up to 4GB of data, dating from mid 2023.

I naturally assume that a "to-be-removed" named folder should have it's content removed by some automated task or maintenance service, right? Is this normal, or is there some bug in application maintenance / updating process?

Thank you

Since updating to Firefox 144, access to bookmarks on my PC running Windows 11 25H2 has been restricted: - Sometimes no bookmarks are displayed at all. Instead, a message appears stating that access to bookmarks is restricted, for example, by a virus scanner. The problem persists even after restarting the computer. - Sometimes the bookmarks are displayed again, but I can neither delete bookmarks nor create new ones.

Disabling the virus scanner (Avira) and other security programs does not solve the problem either. The problem also occurs in Windows Safe Mode.

How can I use the bookmarks normally again?

whenever I do a Firefox update, there sometimes is a new extension included that I personally feel no use or need for..most of the time I can disable them w/programs like Ccleaner (see image), but some are persistent, and return the next time I open Firefox. Firefox always consumed a significant portion of my 8gigs of RAM, and my latest update to 144.02, it is approaching 15%. Any way I can stop this short of reverting back to previous version?

Launched this morning and the interface is totally different. That's not the problem All my bookmarks are gone and I'm unable to restore them

Can I move back to the previous version of FF?

Firefox updated to the latest version and it lost everything. All my saved passwords are gone, all my bookmarks, data, etc. It said I could sign in with my account and it would sync them and bring them all over, it didn't. I can't use the original profile because it says it's outdated, I don't even know if it's the correct profile anyway. What am I supposed to do?

I generally always use Firefox on my PC for everything.

I also often chat with Amazon as they are never short when it comes to fucking my orders

I have not used Amazon for the past 2-3 months and when I finally placed a new order 3 days ago, to resolve the usual non delivery issue, I contacted them via Live Chat, however instead of seeing Chat window pop open as usual, all I got was ABOUT:BLANK in new tab, hmmm...

So far to fix this or at least ascertain cause:

- I contacted Amazon.fr (where I live) and guy at digital services said, "nah, no flies on us, it's Mozilla's fault" - Edge, on same PC (windows 10), works OK for chat - Launching in safe mode changes nothing - Nor does disabling NordVPN - I also added Amazon.fr as "exception" in pop-ups, to no avail - and when I unchecked block box to enable all pop-ups, no better luck - lastly, on my iphone via Safari, all is good, assuming one enjoys typing with 1-2 fingers

my version of Firefox is up to date: 144.0.2

voilà

suggestions?

thanks

Jonathan

I recently bought an new HP Win 11 PC to replace my current Win 10 machine. Running latest FF 144.0.2 on both. How do I transfer my complete FF profile (bookmarks, bookmark bar, login data, EVERYTHING) to the new PC? Want the new install to be an exact functional copy.

THANKS!

Every time I log in with my Firefox account on a new device, the exceptions I set under Privacy & Security -> Cookies and Site Data -> Clear Cookies and Site Data When Firefox Closes -> Manage Exceptions disappear. This should definitely be included in synchronization. Let's be clear: I don't want my cookies saved so I can log into all my accounts every time. I just want my exceptions to be included in synchronization. Firefox could also develop a tool for this: an add-on to easily add websites to exceptions. I don't want to download an external add-on and install it every time for something this simple. Nobody wants that. I also think all my settings should be included in the synchronization scope.

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The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. Please contact the website owners to inform them of this problem. Learn more…

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After installing the Up Grade last afternoon , I can not open WEB SITES My Bank - facebook - Amazon Prime or Ebay - I can sometimes get to Sign Page but no Key ACTION Possible . Internet works in other places I go . WHY ? CAN I RETURN to the OLD FIREFOX ? If so HOW ?

What should happen is that the main image should change on mouse hover over one of the images from the column on the left. Also it should be possible to use the left or right navigation arrows on the main image to cycle through the images. Neither of these actions is possible. It works fine on Edge.