Diễn đàn hỗ trợ Firefox

My browser displays many websites, emails, etc. using a strange garbled font (see attached image for reference).

I already checked the preference setting for allowing websites to select their own fonts. The issue also persists in Troubleshooting mode. I have also used the "Inspect element" tool when this has occurred, also to no avail. I imagine at this point the only real solution is to delete and reinstall Firefox, but I'd love to hear if someone has another solution! Thanks!

Note that text in bold / italics often shows up just fine. I can also copy-paste any of this text and it displays correctly.

My Windows Task Scheduler contains an entry called "Firefox Default Browser Agent". If I delete it, it returns. If I disable it, it re-enables itself. How do I NUKE this permanently?

I already have telemetry and automatic updates both turned off.

A related problem is that the About Firefox window keeps saying "Firefox is being updated by another instance", even though I always "Dismiss" the prompt to download the latest version. (I'm using v107.0.)

Hello world! Is there any documentation explaining if FireFox Sync is the best way to merge different computers and/or devices with different logins saved? And if yes, how to use it (which computer log in first, etc). Has anybody done it and can explain if in the process entries with the same URL were duplicated or if the newer login information overwrote the older one?

I have found this question ALL OVER the internet (phrased differently) and yet, NOT ONE OFFICIAL ANSWER or an unofficial one that actually answers the question. Many well intended volunteers suggest to export and import but then again, there's no information on how the process works. (Duplication or saving Account #1 Over Account #2 or newer over older, etc). How can we get a an official answer? I am sure the coders know how their tool works... why is it so hard to help so many people in need?

For users who have been using FireFox in different computers over the years, it's a VERY REAL problem. Right now, I have to switch between my different devices when searching for passwords as I'm unsure what the Sync would do.... We should not be sorry for having chosen FireFox over other browsers... Thank you.

The citibank site has not worked for a week or two. I get the following error:

Bad Request

Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit

I am running MS Outlook 365 on Firefox. But the Outlook implementation does not fit in within the Firefox window so I have to move the slide to the left and right to either read the message preview or see the the buttons on the left or the complete list of emails. Changing the Firefox zoom or font size does not address it. Is there a solution? Thanks

Fred

I am unable to log on to my Synology Diskstation 220+ using the Firefox browser. The device is accessed through my local IP address. I have no trouble using the Microsoft Edge browser. This problem has existed for several months and I cannot figure it out. On Firefox I have checked the ad blocker and disabled it. I tried clearing the cache. I would appreciate any ideas people could suggest. Thanks.

Hi!

I have encountered this really annoying problem on my Firefox app. I give details below. I installed Mozilla Firefox on my freshly installed Ubuntu 22.04.1 LTS. I tried installing it from Snap Store. However, when I tried saving an image from the web (or, truthfully, any other file chosen by the "Save As..." selection), nothing happened, again and again. I tried many things, including following relevant guides from the internet, but nothing changed. The Firefox version is the 107.0.1 (64-bit), a Mozilla Firefox Snap for Ubuntu canonical-002- 1.0. I, also, have to report some other things, as well. When tried installing the browser from the internet (I downloaded a compressed file, containing the executable), the same function seemed to work. I, now, use the executable to access Firefox. However, firstly, because other difficulties (not problems, but difficulties) arise and, secondly, because I'd really like ti use, mostly, snaps, I report this bug here requesting for help, as well.

Any helpful answer will be appreciated!

Thank you!

Every day, I get multiple bookmarks added to my list that I do not want. They include, among others, things like Get Involved (there are at least dozens of these), About Firefox (again, Dozens), Help and Tutorials (many added). They clog my bookmarks on all things that access Firefox (work computer, home computer, IPhone, IPad) and the only way is to go in an delete them. I don't want nor do I need multiple versions of any of these. For that matter, I don't want even one of each added to my bookmarks. I've looked for help but unless you are a tech expert it's almost impossible to understand how to do that. I just want it to stop or I want to know how to stop it in the simplest way possible.

Cannot access websites. Following message keeps appearing:- Access Denied You don't have permission to access "http://www.tui.co.uk/" on this server. Reference #18.c5c61cb8.1670315390.4c43a5e

Hi, for a weeks I´m having error messages from firefox.

I have already updated windows and mozilla, restarted mozilla and my antivirus doesn´t detect any threat.

What can I do?

thanks!

I restarted firefox today, and now I have the following behavior: I have a window with many tabs open, enough that I have the little '<' and '>' scroll buttons in the field. Whenever I move the mouse pointer into the tab area (including the scroll buttons, but not the '+' (new tab) button to the right), unless I am actively clicking, the tabs start scrolling rightward until only the rightmost set of tabs are visible. The window being viewed does not change. I can use the 'v' tab selector to the right, and it will select the chosen tab and make that visible in the window, and make the selected tab visible in the tab bar, but when I again move the pointer into the tab area, it starts scrolling to the right. Similarly, I can click on the '<' scroll left button, or double or triple click on it, and it will scroll the tabs leftward; but immediately after completing the action, the tabs will scroll rightward to the end again.

It seems my problem is the same one as in this thread but there was no solution given there (the problem persists after restarting Firefox in troubleshooting mode). I see the same behavior as that poster with the tooltips in the tab bar, but drop-down menus such as on this submission page seem to be working normally for me.

I log into mydish.com, get into the website O K then I click onto my account and the screen will come up for a couple of seconds then the screen white and a complete blank and that is all I can get.

So how does one disable popup notifications like the one in the image?

The text just says cant show ads, disable vpn and/or adblock blah blah blah. It always pop ups when i load a page in that website

I've been running into this issue for several months now on Windows 10, currently using Firefox 1070.01 but has been occurring long before that. Only happens on my home PC, using identical accounts on my work PC is unaffected.

When opening a new window of Firefox, the home page and anything clicked within 5-20 seconds of the new window will load normally. After this brief window, all other loading will fail for an indeterminate amount of time, the bars will show filing but will not progress past 80% often resulting in connection error screens. Functionality will sometimes return, but closing and reopening Firefox is always a faster solution.

On this same PC, Edge and Chrome never fail to load pages, even directly alongside a failing Firefox load. This occurs 100% of the time on any webpage.

The same behavior can be observed after clearing my cache, removing all extensions and running the browser in safe mode. It has even continued after a fresh re-install of windows as well, but only ever on this PC and while connected to the internet via Ethernet.

I've replaced the Ethernet cable several times as well as swapping my motherboard, had my ISP swap my router and change the cabling that attaches my router. The issue does not persist over WiFi, but using WiFi only or swapping to it when needed is not an acceptable solution.

My ISP has been out here to test my connection on multiple occasions, no other online connectivity is effected as online games, online chat applications, as well as upload, download and ping monitors all return a stable connection with no interruptions. Only Firefox fails to load.

Would love to work with someone to get this solved. This issue has almost driven me back to Chrome

I am sending in a new laptop to HP(Windows 11) for service on the keyboard and want to physically remove the stored passwords setup and synced via my Firefox sign-in, but want to make sure they do not get removed or get unsynced to my account(so can still use on existing Firefox at home). I see where you may find the location of the directory which they are stored, so can you simply delete or clear that directory on the HP device before sending out for service? Will it re-sync when PC is back at home and not effect my other live devices I will be using?

How do I stop websites from auto playing videos that I don't click on? Don't remember this being a problem before the latest updates. Getting tired of wasting my limited, paid for, data.

I tried to create a saved password for a site I need to log in to. The Create New Login form says "Make sure this matches the exact address of the website where you log in." I enter the exact address, username, and password and save it. But what shows after it is saved is a truncated form of the address. It lopped off the specific account ID information for my login page. So when I try to go to that site, my login page can't be found. Why can't the full address be saved?

Hi, I just paid $99.00 for the update to microsoft office on my macbook pro. The download will not open due to the message: "Microsoft_Office_16.67.22111300_Installer.pkg” cannot be opened because it is from an unidentified developer. It cannot verify this app is free from malware."

It is a purchase from the microsoft website. Is there a way to set up firefox to allow opening this installer? Thanks.

I am using Virb Edit 5.4.3 ( on a Windows PC) (It works fine on my Apple laptop.) and when I import GPX Metrix I get a message stating "you are using a browser that is not supported by the Google Maps JavaScript API. Being an old geezer of 75, I have no idea what that means. Is there a setting in Firefox that I can change to fix that or what? Appreciate the help. Thanks, Robin T. Leeman [email removed from public]