Diễn đàn hỗ trợ Firefox

When trying to upload a file to sharepoint or service-now, I get the following error: You don't have permission to open this file. Contact the file owner or an administrator to obtain permission.

The operation works in other browsers.

I have disabled all extensions and add-on's, tried in safe mode, private browsing mode, reviewed Windows security, application and system log files.

I'm not finding anything in the Web Developer Tools either.

Has anyone run into this before?

image of problem Some, but not all, pages browsed throw up a "hamburger" menu, top left of the window. (the link above should link you to a screenshot taken this morning in Firefox 142.0.1 (64) running on Win11.)

The menu button floats eternally over the text in that top-left corner. This irritates me because I read text, and am frustrated by the browser covering readable text.

I can't remember ever (20+ years) needing the Table Of Contents of a web page. I use Mozilla Firefox's excellent Edit, Find if I want to jump directly to a key word.

Anyone who can suggest a perpetual dismissal of this menu button will earn my lifelong admiration!

I can deal with Settings, About:Config, and even RegEdit. Thanks, Chris

I know that messenger is going away on he desktop as per Meta. Ever since i have had Messenger through Firefox when i click on the camera and the voice it say it can not be done on Firefox browser. Why is this why does it not come up on Fire fox. You at firefox are going t force me off this browser. please explain

My desktop (WIN 11, fully updated) Firefox (reloaded yesterday) does not play well with Google's Blogger. I maintain an open tab on my Blogger account, but that SEEMS to cause freeze-up on all other tabs. THis morning I opened a tab and attempted to sign in to Blogger but a connection to Google never came through. However, when using Edge to open/use Blogger there are no problems.

Hello everyone, I manage a website, which focuses on mobile phone prices and SIM package information in Bangladesh. I’ve noticed that the site loads noticeably slower in Firefox than in Chrome, especially on pages with large images (like smartphone price lists). I’ve already optimized the images using WebP and enabled LiteSpeed caching on my server. Are there any Firefox-specific performance recommendations I should try (for example, about image lazy loading or compression settings)? Any advice from developers who’ve optimized for Firefox performance would be greatly appreciated. Thanks in advance.

Websites like Medicare.gov give message like "We can't process your request at this time." This happens with increasing frequency on pages I know are valid and secure. MS Edge opens them with no problem.

Another example - my bank web site. Firefox triggers a whole series of confirmation tests from them but Edge gets in with just ID and password.

I am using a VPN from Malwarebytes. Windows 11 is the OS. Latest version of Firefox is installed (144.0.2 (64-bit))

I have been a long time Firefox user, but am starting to drift away to Edge because it connects to more web sites with less hassle.

What are my options?

Used to be able to login into ml.com, now get "We're sorry, but we can't complete your request at this time. Please try again later." Tried clearing cache/cookies etc. Tried multiple days/weeks. I can login on Chrome. Merrill Lynch says it's a Firefox issue and seems uninterested in doing anything, like contacting Mozilla about the problem. So here I am.

Mozilla needs to come up with a permanent solution to this issue. I know that Google probably started it by somehow changing YouTube, but Mozilla needs to react and come up with a solution.

As per the title...

If I access "mail.yahoo.com" (specifically the site in the screenshot) at all in a Firefox session, that session is no longer able to play videos, i.e. Youtube, Tiktok, or any other streaming videos.

The videos "break" in that the player loads, but the content does not load, and the player is stuck endlessly with the loading circle animation.

Video previews also don't play when mousing over the thumbnails.

This is solved only by restarting Firefox, i.e. in a totally new session. It cannot be circumvented by opening a Private Browsing session, or new window, or closing the Yahoo Mail tab.

This bug is reproducible in a new profile: i.e. I went to about:profiles, loaded a new profile and opened browser in that new profile, went to mail.yahoo.com in one tab, opened youtube.com in another tab, and none of the videos (or ads) played in that youtube tab.

This bug is reproducible in troubleshoot mode.

This bug does not occur in a different browser, e.g. Brave.

This bug only seems to have happened recently, possibly with one of the recent updates. Edit: I rolled back to 143.0.4 and it still occurs.

OS: Win10 Home 22H2 19045.6456

Firefox: 144.0.2 64bit

Extensions: Clickbait Remover for Youtube Google (verbatim) search NoGoogleAi Old Reddit Redirect Ublock origin Video DownloadHelper Youtube Anti-translate

I pressed "Share Data" for the troubleshooting information but it's not appearing in the question... not sure if I should paste that wall of text...

I am a pensioner in te UK. Due to restricted mobility I spend a lot of time using Firefox to access many web sites. This normally works perfectly. Today I tried to access the web site of national chain store specialising in outdoor clothing and equipment because I need a new showerproof jacket. I have never used that site before, yet Firefox reported Error 403 : Forbidden. Have you people never been told tat error messages are supposed to be useful? What is Forbidden. Why when it has not happemed before?

The web site is https://www.millets.co.uk/

I have a web site so I have other browsers just for checking for layout problems.

I tried Chromium, same error but the message said You are not authorised to access this site. Presumably that is what your incompetent message should have said. But why should a pensioner trying to buy something from a chain store ever need any sort of authorisation?

I tried Opera. Connected me no problem!

I tried Edge. Connected me no problem.

Clearly somebody somewhere is an incompetent idiot, but it isn't me. So who is it? If it is yourselves then please do something to fix this.

lowes web page comes up. but when looking for product it denies me access. it said denied access to server. it gives me codes that i do not under stand.please give me step by step on how to fix it. paul klemp

ZIMBRA sous FIREFOX semble ne pas supporter les mails au format HTML Problème quand je fait suivre (forward) ou quand je réponds à un mail rédigé en HTML. Je n'ai pas ce problème quand j'utilise ZIMBRA sous EDGE. Est-ce un problème connu ? Est-ce une question de réglage ? J'utilise bien la dernière version de FIREFOX...

Help !

I installed Firefox yesterday, and everything was fine for a day. Today, when I play a YouTube video, the entire page freezes - I can't pause it, select text, or do anything. The page starts responding after about 10 seconds from last interaction.

Compared to Chrome, I can play 20 YouTube videos at once and everything works fine.

The problem only occurs on YouTube. Sites like CDA and Jellyfin work fine.

Sys: Latest Windows 11 I5-10400F Intel Arc B580 RAM 32GB 2133 MT/s

It's apparently well known that Firefox and Gmail don't play nice together, apparently because of how Gmail uses Java. Is there a plan in the works to fix Firefox so Gmail isn't so absurdly slow? I don't *want* to switch to Chrome, but I don't want to stop using Gmail either.

When I click on KPN TV+ I see a message: Firefox is installing missing components, try later. But Firefox is NOT providing missing components.. Or is the problem that KPN (and Ziggo IPTV) can NOT run on Linux???

Is there a reason why when using the Firefox browser I am unable to Log in to my Sling TV account. I have verified both user and password to be accurate and each time a I get a "something went wrong" message. Is it a browser issue with Sling TV?

On my other Laptop I experience weird behavior since 1st of October. Only on FF Desktop I couldn´t zoom on Google Maps. The mousepad gesture moving your fingers apart and closer together to zoom in and out only increased the zoom of the page with the searchfield, all the buttons and so on. I could repeat the behavior with FF Nightly. On other browsers it worked.

When trying to report it, I was send into an endless loop while trying to post a question.