Diễn đàn hỗ trợ Firefox

My firefox installation always run in English with all of its interface elements being in English. One of the recent updates introduced a weird behavior - some of the UI became Russian. I seem to have fixed/bypassed the issue last time it happened https://support.mozilla.org/en-US/questions/1415337 but nothing works this time.

Most of my firefox is in English, but some elements such as tab titles in devtools, browser popups "do you want to leave this page", tooltips in this very text form where I'm typing right now - are in Russian for no apparent reason.

I have another profile on this firefox installation and it's completely in English as intended. I tried to check for what changed in about:config, looking for "language" or "locale" string, and there's nothing that stands out. I've tried clearing startup cache, switching language back and forth, restarting firefox.

Any suggestions?

I have gone through basically all of the troubleshooting and fixes possible to get firefox to start. I uninstalled firefox completely including the profile folders from both the local and roaming locations, I've tried starting in safe mode/troubleshooting mode. All it does when I try opening is flash the window for half a second. In task manager it pops up for half a second, I can't even check the properties, cancel the process tree, etc. Even worse: there is no crash reports/files.

I view a page, for example, news.yahoo.com. I usually scroll down a way, possibly to the bottom. I step away, and when I come back I want to refresh the page. Up until about two weeks ago, when I press F5 to refresh the page, it would automatically scroll back to the top of the page. Now it seems to go to (maybe) a percentage of the page based on where it was last scrolled. I then have to manually scroll back to the top to see the latest headlines. Was Firefox behavior changed? Is there a setting to control page refresh behavior?

Hello I want to disable/hide or at leas make smaller the GIANT "detail" bar that shows up on the history manager and difficults reading trough the history. There seems to be no options available in the toolbar and can't find any on about:config either. Perhaps there's a key I can add in about:config to change this?

Thank you

I get this when trying to get my email from Comcast:

Secure Connection Failed

An error occurred during a connection to oauth.xfinity.com. PR_CONNECT_RESET_ERROR

Error code: PR_CONNECT_RESET_ERROR

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

I'm developing a PHP Symfony based website powered by nginx-full 1.18.0-6ubuntu14.4, one of the functions is to allow people to download a PDF invoice.

When it fails Firefox shows an alert "Downloading (Failed) The browser application closed unexpectedly."

On my linux desktop; when I use Chromium 114.0.5735.198 this functions works 100% of the time. when I use Firefox 114.0.2 (64-bit) the PDF download only works ONCE after that the download never completes and I'm left with a partial/corrupted 75.7KiB file named filename.Br-neZWO.pdf.part etc.

I have discovered that if I clear the firefox cache I can perform one successful download again. or I can restart Nginx and again Firefox will perform one successful download again.

I've tried altering many Nginx settings, cache, gzip, sendfile etc with no effect. It might be Nginx related but it does not effect Chrome at all which is why I've started this ticket.

Any help in debugging this would be greatly appreciated.

How do I remove the scam pop-up that won't let me access firefox on my iphone? The pop-up says "your apple iphone is severely damaged." I can't open a new tab or delete the current tab.

The only icons I can see on the right hand side of my toolbar is the NoScript icon, along with the Save to Pocket, FF Account, Extensions and hamburger buttons.

I should have about 12.

I just installed a new system, launched FF and set it up to sync with my account. Everything else appears to run fine - passwords, history, etc. The Tree Style Tab works fine too.

I have double checked the other solutions I found here, such as private viewing options, or trying to find the icons in the customize screen, but that's not the issue.

My other FF instances on other machines are still fine.

I just updated FF on this problem machine to 115.0.2 but no joy.

Is it possible to permanently set a different search engine for private browsing? I have Google set as my search engine in my normal browsing mode, but I'd like the private browser search engine to be permanently set to DuckDuckGo.

(I realise I can manually set it each time to DuckDuckGo but this is tedious.)

With thanks.

So, whenever I open Firefox it will act normally and then after a second close by itself and when I reopen it, it will be in remote mode. I know how to fix this via about:config and do this every time, but I would much prefer a permanent fix, nothing else on Firefox or my computer indicates something else is going on, its just this. I've even at one point uninstalled and reinstalled Firefox and it didn't help.

just updated to 115.0.1 on the Mac yesterday and now tradingview website isn't working - i tried adding it as an exception in EnhancedTracking and CookieSiteData like i did with ebay to get it working again but no luck with tradingview... any ideas ? thx

This issue is so annoying, that I need to ask Firefox community what I can do. So, the problem is, that if I set custom home page called Infinity New Tab (Pro), then I will restart Firefox, then it reverts back to Firefox Home.

I think, that this is completely unrelated to malware, because I'm scanning my computer very often.

Are my preferences/settings corrupted?

However the Infinity New Tab (Pro) is no longer available in addons.mozilla.org, so if you need .xpi file, then tell me, and I will attach that file here.

On the Swedish newspaper site https://www.expressen.se they have videos in many of their articles all over the site. And for some strange reason I can't get any of their videos to play in my browser. Im using windows 10 64bit Home and version 115.0 of Firefox (64bit version). Both windows and firefox have the latest updates. The error I have looks like this: https://imgur.com/a/BK9WaOC

" THEOplayer workers could not be loaded. Please check that the worker's version matches THEOplayer's version (5.1.0)".

The link to that specific page is: https://www.expressen.se/tv/nyheter/har-staller-laman-upp-som-brollopsmarskalk

I have contacted the newspaper support and they responded they have nothing to do with the issue so it must be something with my browser settings or addons that causes the videos not to play. I have tested with all my addons disabled and I still get the same result.

However the same videos works perfect in Chrome and Edge browsers. I am clueless to what may cause this very disturbing issue because I love using Firefox as my main browser but now I'm forced to browse this newspaper in chrome instead to see the videos. Not a big issue though but still... I have never in my life heard of THEOplayer and thought it was something media companies use to show their videos on their sites etc.

Here is a sample URL that works on Microsoft Edge (current version) and receives an error message on Firefox (115.0.2): https://www.t-mobile.com/home-internet The error received from the web site when using FF is:

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

FF was working with all T-Mobile pages a few months ago and now fails with this same error on most pages.

To test on Edge, I pasted the identical address that failed in FF into Edge and it worked fine so I am confident I am comparing the same web page on the two browsers.

Thanks for your help. Claude

Hey, this has been going on for a few days, but when I try to use twitter on desktop, there are no retweet/like/reply buttons. This problem doesn't exist on Chrome or the Mobile app. I can reply to things, but that's it. I also can't browse through my notifications without the page immediately displaying the "Something went wrong. Try reloading." message. I'm not sure what's causing this or if it's just me or what.

I am using Firefox Developer Edition in a work environment that only saves directories between weekly restarts by explicitly managed rules. As a result of some missing folders from my weekly restarts, I need to sign in to my Firefox account and enable sync each week. Currently my machine retains the %APPDATA%/Mozilla and %LOCALAPPDATA%/Mozilla directories + children.

What other directories are needed by Firefox Developer Edition in Windows to retain the user profile/syncing, et. al.?

Thank you for your time!

For a while now (can't remember when it started) rendered graphics and text on FF is fuzzy. Examples of this can be see on Google maps, Miro, Powerpoint etc. On Chrome, Edge etc the rendering is sharp at all zoom levels but in FF its fuzzy until you zoom in.

Viewing on a 4k monitor, running 115.0.2 (64-bit), using the Windows store install Hardware acceleration is turned on. Tested on multiple PCs, all Windows 11

Attached images which shows the comparison between Firefox and Edge Both browser windows are the same size and the default zoom (100%) Examples attached are for Miro and Powerpoint

So I'm using firefox on my old PC and want to export the login data to my new PC. Firefox has export passwords to CSV but there is no import CSV in firefox on the new PC. There's import HTML but... firefox exported to CSV not HTML so I'm really confused, why would it export to a format that cannot be import?