Firefox 社群討論區

Hello Since last update (145), I'm experiencing an issue where Firefox becomes unable to access the internet following a temporary loss of connection during the normal use, until I completely quit and reopen the browser.

I'd appreciate any advice on how to resolve this.

Thanks

How do I get rid of new, but stupid vertical sidebar? I do NOT NEED OR WANT even MORE junk taking up the screen space. Is Mozilla part of Microsoft now? How do I get rid of that junk?

do know computers very well, have used firefox for all my web browsing, firefox kept crashing according to screen so it opened saved apparent older version and I lost all my bookmarks and passwords, please help

Hello. The last few days iv noticed that if i have firefox on my second monitor maximized, i have a thick white line at the top now, yet iv never had this before in all the years iv used firefox

Is anyone else getting this?

Ive been receiving server failure reports from several links at numerous websites including zillow and carvana. Links that I try to open from Mozilla Thunderbird, receive the error or show only a blank page. Is there an issue with Firebird or Thunderbird at this time?

I came from IBM Mainframes to PC's in the dawn of time. My obsessive-compulsive computer hygiene can't tolerate seeing anything blemish my clearly arranged desktop, nevermind an executable file and unsightly shortcut-icons, I know how to use existing commands, menus and taskbars, thanks. How do I move the firefox.exe from my desktop back into the C: root program files folder? I have tried all the usual old-tricks but she won't launch after modifying paths etc. Please help.

This morning when I started up Firefox it had a pop-up about the new profiles feature, asking to create a new profile. Just out of curiosity I clicked the create profile button to see what the interface would look like. Since I didn't actually want to create the profile I hit the delete button, but nothing happened. So I closed the window. I then tried delete the new profile (then called "Profile 1") by hitting the trash can from the choose profiles screen. Still nothing happens. At this point my original profile window is still open, but I close everything to restart Firefox in hopes that it will allow me to delete this profile I never wanted to begin with.

The Choose profile window comes up, I select original profile and nothing happens. I can open the new "Profile 1", which I have since labelled "Bad Profile".

D:\Users\<USERNAME>\AppData\Roaming\Mozilla\Firefox\Profiles doesn't appear to have my original profile anywhere.

I'm deeply concerned this beta feature I never asked for has deleted my original profile when it should have deleted the new profile.

On many of the sites that require hardware key for 2FA, what I should get is a prompt to press the Yubikey button, but instead I get a technical error. This has happened with logging into Google and Vanguard. Both use Yubikey as a 2FA.

I did not encountered this issue on Micrsoft Edge. I am running this on Windows 11 24H2. I believe it used to work.

I was experiencing that one bug that locks the sidebar from opening on hover (even with the option enabled) and I was somehow able to change the size of the sidebar while trying to get it to start working again (IDK why I didn't just close and reopen my browser because I know that fixes that) and now my open on hover sidebar is the biggest it can go and it is genuinely unusable. I can't change the size of it while it's on the open on hover option, but changing it back to the fixed/static sidebar and then editing the size does not carry over when I re-enable the open on hover option. Objectively, this is really dumb and kind of hilarious. I know I am dumb for this.

I do not like the blue background behind My sidebar bookmarks . Is there a way to disable/remove the blue background when using bookmarks sidebar? I am not familiar of how to use syntax editing (I guess its called that), I just need layman terms if possible.

Apologies in advance if I use terminology incorrectly.

I've had this strange but intermittent issue for a while (through multiple Firefox versions) where pages will take a long time to load. I haven't timed loads exactly but I can confidently say it's a minimum of 10 seconds. The problem with diagnosing this issue is it's very intermittent; I can go hours or on a rare occassion days without it happening (I think, maybe I've just not registered some of the times it's happened). I have yet to try disabling all addons because of this.

Random quirks about the issue:

• It only happens on navigation to a new domain (or to a domain from a new tab). Once a domain has loaded, I don't have an issue on said domain for a while.
• It isn't tab specific. I can open a new tab in the same window and they will both take the same amount of time to load, often finishing at the exact same time.
• While waiting for a page to load, I can open a Private Browsing window, paste the URL, and the page will load immediately without issue in the Private Browsing window. This does not affect the page being loaded in the main window.
• I believe it has occurred immediately after a system restart, thus I don't believe it is related to long-running sessions.

The addons I have that don't also run in Private Browsing are:

• Augmented Steam
• BetterTTV
• Enhancer for Youtube (I can't find the addon store link?)
• Firefox Multi-Account Containers
• PocketTube
• Return YouTube Dislike
• SponsorBlock
• The Camelizer
• Youtube High Definition

There was a Microsoft update to Windows 11 today. Immediately after that, Firefox keeps giving me message that cannot restore tab. I close tab and try to open Firefox again and again get message that cannot restore tab. How do I fix Firefox so it works again?

Hi there just switched to firefox due to some unfixable bugs in Edge, but i'm missing a key feature: in edge i had the following add-on : Volume master, which turns the volume up to 600%, however it has a quite handy bug: whenever you change the volume with add-on and then try to full-screen the player, instead going full-screen, it becomes full width theater mode player. is there any such add-on for firefox?

adding images as an example.

How do I confirm that the AI that was recently put into the browser is not working? I want nothing to do with this technology, if it is not able to be disabled then I will switch browsers.

Firefox just did an update about 9 AM on 11/12/2025. I use dictation software to navigate the webpages due to disabilities with my hands. The software can no longer recognize any of the tabs at the top of the screen, nor any of the buttons on webpages. This makes it almost impossible for me to navigate on the web. Something must have gone wrong/been overlooked in your coding with this update. Can this please be fixed?

How long do tab groups stay in the browser? The tab groups I create disappear from 'list all tabs' dropdown. I was unaware there was a time limit. Could you let me know if I am doing something wrong here or change the description to include a timeframe. Saying that I can reopen suggests I can always reopen (see help article quoted below). "You can Save and close group, which will save and close the group for you to be able to re-open from the List all tabs tab icon 2 icon on the tab bar (or the Fx137ListAllTabs toolbar icon, if you use vertical tabs). "

I have lost a number of groups, which is not ideal. I see two tab groups from last four days but no others. See screenshots.

Would love clarification of this, as it is so useful to keep sites in groups for later use.

Thnks

Hello

I want some help please. When I open links from viber or discord, the links open in a new firefox window not the one am using at the time and they open on a no firefox profile window. I don't know what do and how to make the links open in the right firefox window. Maybe you can help me somehow?

Hey everyone, I’m working on my website, lewisestimating.com, and I’ve hit a wall. Everything looks fine in Chrome and Edge, but in Firefox some parts of the layout don’t show up right. Images are out of place and a few buttons aren’t behaving like they should.

I’ve tried clearing cache, disabling extensions, and testing in private mode, but it’s still the same. Has anyone had this happen when working on their own site? Any tips on what I should check or tools in Firefox that can help me figure this out?

Would really appreciate any advice or suggestions.

Hi, I recently visited what I thought was a valid website only to get bombarded with ransomware popups. They state that my McAfee account has expired, an account that I never had, and they insist that I click their link to repair it. It doesn't appear to be a hack or that it is currently mining any info from my account. Obviously, I know better than to click on the link ( one of which is: d3venj8hubcc73ch6bp0.texonnerro.co.in TROJAN VIRUS FOUND Click here to secure your data. There are 4 different messages but all have the same URL address). It's really just annoying at this point. Also, it is specific to my Firefox browser. I have no issues when I use MS Edge. I looked to see if I could uninstall Firefox but did not find any way to do that. I know I would lose all my settings, etc doing that, but if that's the only solution, then so be it. Any assistance you can provide will be greatly appreciated.

The attached image is one of the messages. They're using your logo to make it look authentic

Thank you.