Diễn đàn hỗ trợ Firefox

I am currently fresh on Fedora 38 and Firefox 115 with multimedia codecs installed such as ffmpeg. I have problems playing videos on Facebook or Twitch, like in myday stories, reels, and feed. But in YouTube, videos plays perfectly so I think there is a bug going on here? I already tested turning hardware acceleration on and off but no avail.

Hi everyone, When i go to the website config.office.com in firefox there is just a white screen. Nothing more. Instantly white. I have checked if this is an issue at the side of Microsoft but it doesn't look like it is. The website does load correctly in Microsoft Edge.

I tried the following in Firefox: - Firefox is up to date (Version 115.0.2 64 Bits) , I have had this issue in other versions of Firefox too. It's not a new issue in this newest version. - Tried disabling all the security features in Firefox, disabling all add-ons, and disabling the extra security for cookies - Starting firefox in safe mode (Shift click on firefox, then open the website) - Checked the Network inspector. All packets have status 200 (See the first screenshot)

You can check the second screenshot for the white page.

Some help is appreciated :) Thanks!

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.

Firefox is downloading files directly to my Downloads folder instead of asking despite having turned on every setting that says it should ask first. Under about:preferences I have turned on "Always ask you where to save files" under Downloads, and I have set Applications to "Ask whether to open or save files". I have even gone in to about:config and turned off "browser.download.useDownloadDir", but the files are still going directly to my default folder.

Is there a shortcut to deattach tabs from one browser window so it turns into seperate window, so that you don't need to deattach tabs with clicking and dragging them with mouse?

I'd like to be able to prevent a specific address from appearing in the Firefox address bar (as a suggestion) when I start to type in the address bar. I tried deleting the cookies associated with a particular address, but the address still appears as a suggestion in the address bar when I start typing its name. Thanks a lot for any help.

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

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.

I am receiving the message Did Not Connect: Potential Security Issue ... requires a secure connection ... when trying to access my Shopify website AngelFallsHomes.com. This ONLY happens with Firefox; all other browsers are working fine. What do I do to fix this because obviously it is a huge concern.

I have spent all evening using the Console to debug a project I have been working on. All of a sudden it now displays event information for every click, every keypress (up and down events separately), every selection, everything. This now happens on (almost) any site I visit. This is so absurdly verbose anything I am hoping to debug is buried under mountains of extraneous information about my inputs.

Is this is a setting that can be disabled somewhere, that I enabled without realising somehow? I have spent some considerable amount of time poking around trying to find some setting, but to no avail. It was certainly not behaving this way before, is it possible to change this back?

I subscribe to The Times (UK) and use many of their different portals. I am, however, experiencing a really odd problem. For the last three Mondays in a row when I hover over a link it shows one destination which is now three weeks out of date and downloads same when clicked. When I Inspect(Q) the relevant bit of script it shows the correct page for the current week. All other links from the current edition work as expected. The link works correctly on other days of the week. The IT support at The Times have no idea why this is happening and have simply asked me to do stupid things like clearing all cache and cookies relevant to their site. this has no effect whatsoever!

How can this happen and have you any help on the subject?

I download a file. It stops and speaks of a security risk. The website is https, but the file is http. Is there a location I can pre-approve all files from the url to override the objection? Thanks.

i want to know if there is an addblocker built into firefox and if there is how do i remove it because im pretty sure it's messing with a website i use to watch anime

The solution for the original Disable F11 (https://support.mozilla.org/en-US/questions/1255696) is no longer working. When the solution is executed from the Browser Console...

doc = Services.wm.getMostRecentWindow("navigator:browser").window.document; if(E=doc.getElementById('key_fullScreen')){E.removeAttribute('keycode');E.removeAttribute('command');}

The return is a reference to "HTLMDocument chrome://browser/content/browser.xhtml" which can be opened up and displays more information.

It used to just come back with something like "Undefined." and then it worked (F11 was disabled for the browser instance). Looks like it just started to not work with this latest version of 115.0 64-bit as this solution has been working for over a couple of years now.

Is there a way to enable this to work in the latest version?

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.

I cannot log into New York Times via Firefox - ms says it thinks my IP is a bot. Also blocked on a local newspaper Montreal Gazette. I am able to log in w/ no prob on Opera - please advise? thanks!

Dear Mozilla

I wrote to you earlier today about a problem i am having with themes.I change themes quite frequently and have a lot of them on my list. After opening and closing the browser once or twice the list of themes no longer shows what each theme looks like. I reset Firefox and the image of each theme reappears. It's quite tedious as i said to have to do this once or twice a day. Is this problem occurring because i have too many themes on the list?. I have turned off all other extensions and the same problem keeps happening. I don't know what to do.

/edit: Please put a space after periods as there were unintended links.

I recently started experiencing errors for logging into third-party websites that use Google sign-in.

On one site (coches.net), I have the sign-in popup loop for like 3 times and then disappear but leaves me unlogged.

On the other site (etoro.com), the sign-in popup shows but then I get an error message from the site about the login. Then it won't let me reconnect since CloudFlare won't accept my "I'm not a robot" prompt and keeps reloading the same page.

This started happening yesterday. I'm not aware of any Firefox or Anti-Virus updates that have happened since, measures not existing yesterday.

I can sign-in correctly from Chrome with no issues.