Diễn đàn hỗ trợ Firefox

How can I completely remove the tab bar and regain 3/4 of an inch of screen space. It would be nice if Mozilla would just have a on/off button for it. I've tried creating a folder called Chrome within my Firefox Profile folder. I then created a text file within that folder and named it userChrome.css. I put this string in the text file #tabbrowser-tabs { visibility: collapse !important; } This did not work, does anyone know the best method for getting rid of the annoying tab bar?

Thank you

Why is there not a simple means to take a link and pin it as a tile on my home page? I've expanded the number of rows displayed which as an odd history of my browsing, yet the latest links I've visited are not there - meaning the link to the location I would like to pin. Seriously, the entries in the rows (other than previously pinned links) is a hodgepodge. It might be useful if there was some evident logic to the items included. It is disappointing the number of times this question has been posed and the "answer" is to display more rows. Similarly disappointing - an old knowledge base article that says to click the 3 dot icon next to address bar for Firefox on android - would have been handy had such a control appeared in the latest version of Firefox I'm running on my Mac.

Hi, not sure what I'm doing wrong, but my logins and passwords simply will not synch between devices. I principally use a desktop Win10 machine, and an iOS version of Firefox. Have double-checked settings on both devices, tried forcing a manual sync from each to the other, all to no avail. Any ideas on what I need to do differently? TIA.

A white screen occurs when browsing the web. If you turn off "Use recommended performance settings" and "Use hardware acceleration when available" the problem is fixed, but then the browser slows down. Can this be fixed in another way?

Firefox 114.0 (64-bit) / Windows 11 Home 21H2

Is there any way I can make Firefox address bar autocompletes the full URL (https://bitwarden.com/password-generator/ instead of https://bitwarden.com/)?

PROBLEM ACCESSING MY GMAIL VIA FIREFOX

My wife and I both have (separate) Gmail accounts – we access them on Win 10 computers, using Firefox. I have set up two Firefox “buttons” (one for each Gmail address), both of which worked perfectly – until today!

Now, when I click on EITHER of the two Gmail “buttons” I get ONLY my wife’s email! I CAN access my own Gmail with either my Android phone OR using the Edge browser however!

So far as I can see, nothing has changed with the two URLs (a different one for each button) – I’ve tried setting up a ‘new’ button from scratch and just using 'my' URL in the search bar but both still give the same result – my wife’s email account!

HELP!!

Hi,

I've been encountering a strange issue where colors (especially whites) in the video player are super washed out. This only happens when HDR is turned on in windows, and only happens in my Firefox Developer Edition installation (normal firefox works fine). It also doesn't show up in any windows screenshots - the colors revert to normal when I'm in the screenshot GUI. I've attached photos below of a youtube video, the left is firefox DE and right is normal firefox, both in and out of the screenshot GUI so you can see the difference.

I'm on Windows 11, and I'm not sure what caused the issue. I've tried both refreshing and reinstalling firefox DE to no avail. Pretty stumped on this one, and would appreciate any help!

Hello. I can't copy and paste in Figma in Firefox whatsoever, both plain text and images. Tried doing it in Vivaldi and that browser showed a dialog prompt asking whether or not I want to allow the page to access the clipboard. I granted the permission and it's working there now. Can I do the same in Firefox somehow?

Firefox 114.0.1 on Windows

Every time I go to Fox News, the video at the top of the page drops to the lower right-hand corner. It's an annoyance I've been searching for a way to eliminate. I have pop-ups blocked in preferences and I have a couple of different pop-up blockers, but nothing seems to work. I'm currently using Firefox 114b.09 on a Mac Desktop.

I had a personal certificate installed in Firefox and it was working well. It expired, so I got a new one from the same provider. Both appear in Firefox under "Privacy & Security" -> Certificates -> View Certificates... The previous one is not valid any more, and every time I try to access some page with a certificate, it uses the old one. So I tried to delete the old one. Nothing has worked so far. Doing the straightforward way of selecting it in the Certificate Manager and deleting it makes the certificate disappear from the manager menu, but if I enter the certificate manager again, it is there again. I tried to delete both certificates, same issue, both reaper in the manager. I tried to delete them, close firefox, delete cert9.db, cert8.db and key4.db and nothing. Only thing left is delete my current firefox profile and start again... Any other idea or something that I might delete before to solve this?

I've been having a weird issue with my text glitching only in my Firefox browser. Initially I thought it might be my monitor but then I realized the issue only presents itself in my Firefox browser. Literally no other program is affected.

I've done a reset, I've uninstalled and done a clean install, I've deleted all Firefox files and re-downloaded the browser. The issue immediately pops up again.

1) Firefox advertised free apps when you signed up for vpn. However, when I signed up for vpn, I didn't get any apps. Did I do something wrong? Why didn't I get the free apps? 2) I don't seem to be able to add the VPN two other computers. It seems to want to sell me (Again) the VPN. I don't want to buy it again, just add my existing VPN to other computers. 3) I have some Macs that run Parallel's. Do I need to add Firefox VPN do the Windows that is running on Mac. Or, does my Mac Firefox VPN somehow protect the windows without adding a separate VPN on windows?

Hi there! I am a long time Chrome user and decided to try Mozilla Firefox. I loved it and after a bit of tweaking, I run into a problem I can't deal with myself. In Chrome I loved auto fill options every time I needed the option for my home address, email address or credit card. In Firefox I just can't do it. The option is only available for Canada or SUA. Is there any way I can make it work? Of course, I looked for some add-ons and actually found several, but given the fact that auto-fill in my case deals with personal and sensitive data, I need a safer method. Is there any? Thank you!

Firefox 114 introduced hidden support for nvidia video super resolution. In about:config you can enable preference gfx.webrender.super-resolution.nvidia to make it work. However I see 0 difference on all videos on all pages. I have everything in nvidia control panel set correctly (VSR enabled and set to 4/4 quality).

Tried to find more info online and someone on reddit complained that it worked before but it stopped working with latest firefox beta (probably before final 114 release): https://www.reddit.com/r/firefox/comments/13duluz/nvidia_video_super_resolution_comes_to_firefox/

I tried using logic too - if this pref is related to webrenderer in its name maybe it is not working because I am not using webrenderer? However I checked about:support and in section graphics->composition I have "webrenderer" so it seems I am using it, but its VSR feature is not working at all.

I have bought a new pc with Windows 11 home pre-installed and set Mozilla Firefox latest version as default browser ...the issue i am having is placing add-on extension shortcut icons on toolbar. I installed Norton Safe Web and this installed ok and is listed in extension control panel and when i click puzzle icon Norton Safe Web is not shown under manage shortcuts nor can i see option to Pin to Toolbar. Have tried several attempts but still get nowhere.I uninstalled Mozilla Firefox...restarted pc ... did a fresh install of Mozilla Firefox without altering any settings..re-installed Norton Safe Web and still cannot see option to Pin to Toolbar.Clicking the gear icon does not help Have i missed a step somewhere ?

When I reopen the browser, it's just an empty new window. I am able to reopen them in "History" > "Recently closed windows", but it's extremely annoying to do this every time. Is there a way to fix it? It was fine like two weeks ago or so and my settings seem okay. I can't find the solution in similar posts here.

Hello, Microsoft Defender did a scan tonight and apparently detected a trojan script, located in the folders for Firefox extensions for both profiles I use on my computer

Trojan description: Trojan:Script/Wacatac.B!ml

Files: C:\Users\[user]\AppData\Roaming\Mozilla\Firefox\Profiles\[default profile]\extensions\langpack-fr@firefox.mozilla.org.xpi C:\Users\[user]\AppData\Roaming\Mozilla\Firefox\Profiles\[second profile]\extensions\langpack-fr@firefox.mozilla.org.xpi

This scan happened at 9pm, and a previous scan at 6pm didn't show anything. When it detected the script, MS Defender contained it and apparently deleted it when it asked me to restart the computer, I then did a full offline scan and nothing else showed up, same with a full scan with the free version of Malwarebytes. I didn't do anything unusual between 6pm and 9pm, so I'd like to know if there's a way to determine whether that script was an actual threat (instead of a false alarm)? If so, any way to know how long it has been on my computer? Any further risks to take into consideration? Other steps to follow? Thanks for the help

I've looked into this situation, and none of the solutions submitted online work.

I went to about:preferences, and set "security.certerrors.mitm.auto_enable_enterprise_roots" to false, but "security.enterprise_roots.enabled" is set to true and locked; I can't change it.

First of all, I am not using Avast, AVG, Kapersky, etc. antivirus; I'm using Win 10's built-in security suite, so it's not my antivirus causing it.

To double check that, I opened the Registry and went to " HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Mozilla\Firefox\" and "HKEY_CURRENT_USER\SOFTWARE\Policies\Mozilla\Firefox\", looking for a Mozilla\Firefox\Polices key, and neither one had any Mozilla keys.

I even checked the Autoconfig settings, and found no settings in the JS file that had anything to do with Enterpise Roots (I renamed the file temporarily to disable it), but I still can't disable security.enterprise_roots.enabled

I have no "Organization"; I'm an independent home user, so needless to say I'm concerned that Firefox is suddenly saying some organization is controlling my Firefox.

Win 10 Home Ver. 22H2 OS Build: 19045.3086 Windows Feature Experience Pack 1000.19041.1000.0

Antivirus/Firewall: Windows 10 Security

Firefox: 114.0.2 (64 bit)

I have a (quite old) Iomega 2 NAS in my local network. I have to connect to the admin page to change some settings, but FF responds with SSL_ERROR_UNSUPPORTED_VERSION, with no option to bypass.

It's my own NAS, in my own local network. How can I bypass this (in this case stupid) restriction? I know it's safe, I know no harm can be done, still I can't get to this page.