Firefox Support Forum

Hey,

I've been having an odd issue with Firefox where tabs where I attempt to access youtube.com will immediately crash. This issue first arose when I attempted to log in to Youtube, and had never occurred before. When I did that login, the tab crashed, and I have been unable to access the website since (100% crash rate).

Basic details: The website does not visually load at all. However, the URL bar icons for the website do briefly appear prior to tab crash. (Autoplay button, etc). The crash is never reported in about:crashes.

I've tried the following tests, unsuccessfully: - Logging out of all Google accounts separately - Disabling all extensions - Transferring all of my data to a new computer - Reinstalling Firefox - Rebooting Firefox in troubleshooting mode

This problem does not occur on my Windows machine but occurred on my previous intel-based Mac and now on my current Apple Silicon Mac.

The only success I have had is in creating an entirely new Firefox profile. However, I would prefer to fix the issue, as I assume that porting all my settings to the new profile would... also probably bring the bug along.

Thanks for reading & any advice is appreciated.

Starting on 12/1/23 Firefox browser on Windows PC is Not Responding while loading up bookmarks toolbar. Switching to "Never Show" is only way to load the browser. Trying to open or manage bookmarks freezes up the FF browser again.

For some reason Montserrat fonts ignore font-weight for me on all websites. In happens on my main browser profile, with a new clean one with no add-ons and even in Tor Browser. Pictures 1 and 2 illustrate the problem. If i go into page inspector and replace "font-family: 'Montserrat', sans-serif;" with "font-family: 'Segoe UI';" the parameter works as expected and the alternative font is rendered properly.

Reinstalling fonts from fontsource.org didn't help.

OS: Windows 10 1607, FF - 120.0, issue was present for many versions before.

Hi,

Ever since installing the latest Firefox update I can no longer access Microsoft Outlook - email. When I try I get the following in the search bar https://outlook.live.com/mail/0/. Then nothing

I can access my Onedrive account, no problem, but when I try to get to the email part I get the same search bar response. Then nothing.

Using MS Edge, no problem - all works fine.

I have cleared all temp i/net files, cookies etc

Any (simple!) ideas gratefully received

Thanks -

Jim

When trying to click on links inside PDFs, the url is changed to undefined, producing an error message. For example, a Hostgator article is converted from https://hostgator.com/help/article/how-do-i-change-my-dns-or-name-servers to https://undefined/help/article/how-do-i-change-my-dns-or-name-servers

I have tried clearing the cache, troubleshooting, and get the same result in safe mode, and reverting back to Firefox default settings. And I still get the same result. I've attached an image of the error message.

As I said in the Subject I just bought Total AV this month, now its disabled on Firefox. Is this a permanent action? or is this a temporary action? How can/will I get my Antivirus back in action on Firefox?

Today I went to tesco.com site OK, but when I tried to login I got an Access denied message: "You don't have permission to access "http://www.tesco.com/account/login/en-GB?" on this server.

Reference #18.96421202.1700656983.3e25708 "

I cleared cookies and history and eventually uninstalled and re-installed firefox, but still the massage persists.

MS Edge and Google get me i fine, but I prefer to use Firefox if possible. Can you please suggest a way to prevent the error message.

Thanks

Hi, I suddenly have a thick white border around three sides of browser that I can't rid of. I did a search here and found what looked like a solution but there is no "Customize" button in FF any longer, so not sure how to fix this.

It is not running in compatibility mode either.

Thanks all

Hello,

After FireFox 80, the shortcut key of "Copy Link" and "Copy Email Address" was changed to L from A. This is really inconvenient for most right-hand users..

a> I posted a link 2 years ago below. But it is not working in the latest Firefox 120 under Windows 10. https://support.mozilla.org/en-US/questions/1333526

b> I believe a lot of users are looking for this answer like this one below. https://support.mozilla.org/bm/questions/1334749

c> Yes, thanks to this add-on which will add an extra link with shortcut key A, but it shows 2 duplicated links. https://addons.mozilla.org/en-US/firefox/addon/copy-link-address-a/

Anyone know how to change the L to A natively? I prefer the same way as a>, or post an add-on like c> but to change existing L to A, not add an extra link.

Thank you so much! Brian

Hello, I've got two profiles, 'Home' and 'Work'. I run two Firefox windows with these profiles. Now, I want to open a link from another application, like Slack or terminal, and want it to be opened in some predictable Firefox window. Now it depends, probably, on which Firefox window I opened last. So I want to be able to select in which window the links should be opened: I see it as marking a window as the default one. Note, that I don't want to set a default account, as there's no default account for me, I always choose which account to use when opening Firefox.

Thanks.

I frequently use GroupMe on desktop from Firefox, on two separate computers (a self-built desktop, and a Dell Latitude laptop).

Starting sometime over a week ago, I have been unable to drag & drop or otherwise upload photos in my chats. The only method that works is pasting direct URLs of JPGs.

In all other circumstances, I get the uploaded image error attached to this post.

Two different GroupMe support agents have said that, since image upload is still working in Edge, that it's a Firefox problem.

Tried clearing cache, site cookies, reset the browser, ran in troubleshooting mode...same result every time.

This is not the "image file size too big" error. I used to routinely post captures from the Snipping Tool, and I can't anymore.

I'm not sure where else to go to troubleshoot this. It's very annoying. Any suggestions?

Outlook displays the "To:" and "Add a subject" labels in black/grey text, but the rest of the "New Mail" window is white. There are no visible border lines between the "To" line and the "Subject" line. And no visible border between Subject and the email body.

The side-effect is an elderly person writes their entire email into the subject line field because it is not obvious where the email body starts.

I've seen this behavior on 2 different computers running the same (latest 120.0.1) Firefox. Odd thing is that I DO see borders when I run Outlook.com on my work laptop (same Firefox version). What config settings might control behavior like this?

I captured screenshots of the desired display of borders on my laptop. Tried .jpg, .png and .bmp. All of the files showed the borders between To, Subject and email body. But when those files are transferred to the PC I am on, the borders no longer display. Bizarre. I uploaded/download the files using Onedrive to ensure that the corporate email server was not touching the files. Even then the borders that exist in the files on the laptop do not display when those same files are viewed on my home PC.

I am trying to zoom in and out on a webpage JUST the elements. I DO NOT want the text to zoom in or out when I do this. I was able to do this within the last couple of days here, but cannot remember How I did so..

After running Import and Backup and selecting the date I want, the left column in the Library shows History, Downloads, Tags, and All Bookmarks. Under All Bookmarks, those folders have all the stuff I want in my Firefox browser. Currently my browser shows the folder names, but the folders are empty. How do I get the left column into my browser?

Hello, I recently downloaded Firefox and transferred all my data from Chrome to Firefox. Everything transferred well and for a day all my bookmarks were visible at the top of the page. Then I turned off bookmarks to only show on a new tab, and then later realized that the bookmarks were not being displayed on the new tab. And even when I turned bookmarks to always show on all tabs the bar is there but nothing is displayed. All my bookmarks are still in the Firefox Library and I can save new bookmarks to the library, but the bookmarks bar above still remains empty. Clicking Import and Backup in the Library and clicking Restore hasn't returned the bookmarks to the bookmarks bar. Does anyone know how to fix this?

Foxnews.com causes Firefox 102.0.1 to freeze when scrolling pages with lots of images. Closing and restarting FF does not help. The freeze reoccurs. What does help for awhile is to delete the file places.sqlite. After that FF runs for a few hours until the problem happens again. Is there a setting or other fix for this issue?

AdBlockPlus and uBlock Origin are both installed, but are disabled on www.foxnews.com.

Steps I've taken to try to fix the issue. 1. I've cleared all cookies/cache/history 2. I verified that network.dns.disablePrefetch is set to True 3. I started Firefox in safe mode 4. I've made sure Firefox is up to date 5. I've tried modifying security.tls.enable_0rtt_data to both True and False and reset firefox after each attempt. 6. I am able to get to google using any other browser but Firefox is having issues. 7. I am able to ping google and google dns from cmd. 8. I've tried clearing local dns cache and trying again but no luck. 9. I've uninstalled Firefox and reinstalled, still no luck. I cannot use google.com or use services like Crunchyroll that use google to login.

PC off for 8 months. Trying to log into Yahoo mail, FF causing a looping situation. Enter user name, password, go to IPhone to verify but instead of then going to mail it loops back to user name. Tried MS Edge and it logged in successfully. Deleted cookies, history etc. No matter how many times I enter user name, password and go to phone to verify it just loops back to login at user name.