Diễn đàn hỗ trợ Firefox

Hi, I can't install Firefox and I don't know what's going on here.

Yesterday I installed the latest version of Firefox and it worked fine. Then, I turned off the laptop and the next day when I was going to use Firefox, it didn't load any pages. Edge was working fine, Chrome was working fine, but Firefox was not working. Trying to fix the problem, I decided to uninstall Firefox and installing it again. In order to clean even more the previous installation, I even manually deleted the C:\Program Files\Mozilla Firefox folder to remove all possible traces. I restarted the laptop and downloaded again the Firefox installer. I don't know how, but the installer detected that I had already installed Firefox before. I unchecked restart Firefox and hit the button to continue with the installation. After this, was impossible to install Firefox again. I got a message saying that the installation cannot continue because the VCRUNTIME140_1.dll was not found. The message said that this problem can be fixed by reinstalling the program, but that is not true, everytime I try to reinstall it, I get again the VCRUNTIME140_1.dll error.

After this, the installation stops and the Firefox icon appears on the desktop, but it doesn't install properly the software and when I open it, I cannot browse the Internet.

Do you know what's going on here and how to solve this?

Cheers

So I make games and one thing that bugs me a lot is when i make a game controlled by WASD, when i try to move, it opens up the Find menu. Is there a simple fix that I can do to stop this?

Hi Folks - am using an iMac Retina 2019 - have updated to Monterey Version 12.1 but it seems my Firefox log ins have disappeared - the Safari ones have remained - any suggestions? Best wishes. Dave

Hi, please can you tell me how to import my extensions and bookmarks from Brave browser, which I was previously using please? Many thanks.

Kindest Regards Sherry

Yesterday when I installed the 96.0 update it has forced my background color into a dark grey and ignores the background color setting. I would like to know if there is a setting, add on or update that can return this to normal. The theme I am using has not been updated in 2 years so I am fairly sure the update has caused this.

cant update to latest version, administrator has disabled auto updates. But no option to manually update and no option to turn on auto updates either. . So apparently firefox isn't compatible with netflix anymore either due to no update options... It looks like chrome is my only option now.

Hello. Before the "proton" update to the Firefox UI, I had nicely saved space in my browser by putting the navbar up on the same level with the menu bar which is able to make the UI area of Firefox take up less vertical space on my screen. Proton broke this however, so I reverted.

What sort of userchrome.css code do I now need to use in order to put the menu bar and navbar on the same level, like the attached image?

Firefox keeps resetting Bing SafeSearch back to Moderate. This change occurs with every single search and the problem has only begun since in the last week to 10 days (it is now 1/21/2022.) I have cleared all histories and cookies and even gone as far as to completely reset my computer. It happens on all my PC computers, Win 10 and Win 11. It happens with all combinations of my Firefox profiles and all of my MS accounts. It happens when I'm not signed into any Firefox profile or Bing account. It happens in normal mode as well as private mode. It happens only with Firefox. It does not happen with Edge or Chrome. This is very clearly a conflict between Firefox and Bing SafeSearch.

i can't login to my add-on account: https://addons.mozilla.org/en-US/firefox/user/17223206/ every time i click on log in it sends me to a normal sign in page: https://files.catbox.moe/ap80cq.png then i click on sign in and it throws me to another page: https://files.catbox.moe/eyea5d.png from there it doesn't work as it should i completed the 2fa setup by scanning the qr, it shows up on my google authenticator but when i enter the 6 digit codes its generating in the login page, it just says they are invalid (they are not. i tried it like 50+ times): https://files.catbox.moe/8zxns6.png i tried using the other method as well same thing happens: https://files.catbox.moe/i8esej.png

i can login fine in places where it doesn't require me to enable 2fa like https://accounts.firefox.com/ i tried enabling 2fa from there (through my account's settings but the same thing happens): https://files.catbox.moe/onm1yw.png

note: by 2fa i mean Two-step authentication

I just bought a new computer with Windows 11 and downloaded the latest version of Firefox. I have the Bookmarks Toolbar set to always show and it is showing, but I cannot drag bookmarks to the toolbar. Nor can I create folders on the Toolbar. I can drag bookmarks and create folders in the Bookmarks Toolbar in the Bookmarks drop down menu, but they do not show up on the Toolbar itself. Help please.

My cat walked across the keyboard, and now when I press any key on the keyboard it makes the browser pop in and out of full screen. Is there a way to fix this? I have tried the refresh and this did not work

I always used a theme that is dark on the top side (tab area), after the last update, all pages went on darkmode without me making any change, google search, twitter, whatsapp web, even the initial firefox page. The only way to turn that off is to deactivate my theme. I dont want my browser to be entirely on dark mode. How can I roll back this change?

If you use userChrome.css to customise the tab toolbar, you might see the height of the tabs increase with Firefox 96.0.2. For me the fix was to add an entry to userChrome.css:

   #tabbrowser-tabs:not([secondarytext-unsupported]) .tab-label-container {
     height: initial !important;
   }

This counteracts a change in 96.0.2 which sets the height of that element to 2em.

Firefox update has changed my background colour without my permission and due to failing eyesight I can barely read anything. I have tried to change the background colour as per instructions but it will not revert to my original setting

I've been using Elijah Lopez's Matte Black (Red) theme for months. Recently, I think because I added the ClearURLs extension or some other change, certain websites enter some sort of "dark mode" when accessed.

Websites that do this include Twitter, an independent blog, and Youtube.

The website appears normally with the default light theme enabled. In the second photo, the website appears in the "dark mode" with the black Firefox theme enabled.

I have deleted cookies and cache, reinstalled Firefox, and reinstalled Extensions. I think this problem only occurs with dark themes, and nothing else. The moment I change to dark theme, the problem comes back. It is strange because the dark theme was working just fine for months until recently.

How can I keep the dark theme, preferably the same Elijah Lopez's dark theme, while using websites normally and not in this weird "dark theme" style adaptation?

Unable to access customerconnect.vmware.com but can in the "other" browser. I have tried the recommended turning off proxy, or Private mode, safe mode, etc. Nothing seems to be working.

I recently upgraded to the newest version of Firefox for iOS (version 96.0.2). Is there any way to change the background colors of the Home page and other windows? I find white characters on a dark background hard to read and would prefer black characters on a light background.

/moved thread from Firefox for iOS (for iPhone/iPad) to Firefox section

I have been using the same custom theme for the past 3 years or so on both my windows 10 pro and dual boot Ubuntu 20.04. Recently, my windows 10 pro firefox started going into dark mode all of a sudden without me changing ANYTHING. The system theme and everything else stays the same. Then about 5 days later, my Ubuntu 20.04 firefox started to inherit this stupid dark mode as well. I have tried _ setting ui.systemUsesDarkTheme to 0 (number value) in about:config _ Changing to other custom color themes, and they all went into dark mode. _ Refresh Firefox _ Reinstall Firefox

When I went into "Ads on & theme" tabs, changing to system theme, it picks up the white theme mode. But Youtube webpage system theme mode pick up the dark theme mode.