Diễn đàn hỗ trợ Firefox

This problem started yesterday and I cant seem to fix it where youtube is too wide for my screen without any indicator on the top of my screen saying that its zoomed in and I cant watch any videos fullscreen. This glitch isn't a problem on any other websites. I tried opening and closing the browser, I tried restarting my computer tried clearing my cache and cookies and I tried using different accounts but none of them seem to fix the problem!

Photo 1: What it looks like right now Photo 2: What it should look like (had to use private tab) Photo 3: What search looks like Photo 4: What search should look like Photo 5: I cant see any videos fullscreen

Hi, I need to update my credit card details for my monthly donation to Mozilla but I cn't find out how to do it. I can't find a way from my Firefox user account to do it. Clicking on the only link I can find to Donate just throws a 403 error. Clicking on a link to help for Mozilla Donate does the same thing. Please email me advise how I can do this. Thanks, Andrew

I use Yahoo mail from my Firefox browser (mail.yahoo.com). Today Firefox won't let me begin a new email. I click the "compose" button, which should open a new blank email, but nothing happens. I tried in Safari and I can do it there. Please advise and thanks for your help.

Title. I've followed every guide I've found but the issue still persists. I've created a new profile, reinstalled ff after deleting the whole file from my pc, deleted all cookies for a dozen times, disabled all extensions, started ff in that problem mode or whatever it's called and I still can't login to certain websites.

I type my login credentials, press "continue" and nothing happens.

I hate how much information Google gathers from their users but I used Chrome for five or more years and I never had this issue with their browser. Not once. Even now I constantly have to go back using Chrome because with it I have no issues logging in to the sites while on FF I just can't.

What is going on?

This only happens when clicking a link from an email in Thunderbird most of the time it is a news platform. I have to copy the link and open a new tab in Firefox to have it work.

I tried to watch a youtube livestream today and it failed to play. Non-live videos on youtube are playing, even the same videos watched as VODs after the stream ends, but the livestreams are providing "Your browser can't play this video" errors.

Simultaneously, I'm noticing that some videos on Reddit (such as embedded tiktok videos) are stuck with a circling ring and won't play. At least some of the same videos will play on Tiktok (when I can find them).

ALSO, when I try to watch videos on my Nebula subscription, I'm getting a "This video could not be loaded: 4" error code. ANY video on Nebula.

What the heck gives?!

Why does Firefox cut off the bottom of the score banner on ESPN website? (See screenshot)! This question was asked 5 years ago and was never really answered correctly https://support.mozilla.org/en-US/questions/1189999

(I tried the suggestions made there, but the issue persists), so please don't refer me to that answer.

As you can see, MS Edge has no issue with it, nor does Opera.

Every time I try to login to my bank using Firefox New Private Window I get a message "Unable to login. Try again later." But if I then switch to Microsoft Edge browser using its private window I have no problem, no delay, in logging in. It has occurred to me that Edge is deliberately blocking or somehow delaying my login attempt with Firefox. Could this be?

I am experiencing issues with my ChatGPT subscription while using it on the Firefox browser. Despite having an active subscription with access to ChatGPT-4, the interface only shows an 'Upgrade' option instead of the 'Refer a Friend' feature, which suggests that my subscription isn't being recognized properly. Additionally, whenever I try to send a message in the chat, I receive an error stating, 'Our systems have detected unusual activity from your system. Please try again later.' I haven't encountered these issues on other browsers. Could you please provide assistance or guidance on how to resolve these problems with Firefox?"

I have tried to clear the cache, and relogin, does not work...

I am wondering if this is an issue of Firefox or ChatGPT, any resolution on this?

The file-picker (when I choose any file related operation such as Open File, Save As, etc) on just one of my machines is far larger than my desktop size (and the window appears not to be resizable).

When I trigger any such operation I'm presented with what looks like a blank screen as I a shown part of the vast unused area of this oversized window. If I force my wm to allow me to move the window I can use the file picker with a lot of painful repeated scrolling around but otherwise it's unusable.

Any idea why firefox might be doing this or where it might have cached the file picker size? There doesn't appear to be anything related in about:config or userprefs.js

Starting up in trubleshooting mode doesn't have any effect on this.

Suddenly, now on FF 119.0.0.1, JPEG Images no longer open in new tab when clicked with mid-mouse-button (previous behaviour, wanted), instead they get downloaded, safed to DL-folder, and maybe opened in 3rd-party-app. I tried to change the Open-with settings, but to no avail - there's no option to 'Open in Firefox'/Internally. (Only Open with../Download)

I've tried older guides on the topic, which didn't apply here it seems, also cleaned cache, etc.

Hi there. I thought for sure this used to exist, or maybe things have changed? I am thinking I used to be able to hover over an image url in the source code and it would list the intrinsic image dimensions below the preview in the source code window. Maybe I was imaging this?

Thanks for your time.

On chrome I have several profiles and different ones use different LastPass (and other) extension services. EVERY PROFILE maintains it's OWN login information.

Firefox, however, does NOT ISOLATE PROFILES. On ANY Firefox profile, if I log into LastPass EVERY PROFILE is forced to use THAT information- even going as far as logging out and logging into the OTHER profile's information/account. This is 1990's level idiotic.

WHY are profiles SHARING LOGIN INFORMATION!? This is entirely stupid and defeats the entire purpose of multiple profiles.

I had this happen with Facebook logins, too... WHY does ONE profile FORCE OTHER profiles to change their login information?! WHY ARE THEY NOT SEPARATED?!

How do I solve this?!

it is the SINGLE biggest reason why I can NOT switch to Firefox again. Chrome does this. Chromium does it. EVERY Chromium browser does this. 10 years ago Firefox did this... and I left it when it QUIT doing this... when it BROKE profile separation.

Why is this STILL a problem?!

Amazon Prime Videos will not play on Fire Fox. The message says to update Firefox, but my browser is up to date as of today, 10-24-23. Their customer service can provide no answer. This has been an ongoing problem for several months. I have tried their trouble shooting steps of restarting my system, signing out and re-signing in on Amazon and closing and re-opening Firefox. Allow DRM content is checked on my settings. Thanks.

Hello,

I need help i'm using polish language always on many websites.

When i typing letter "ó" which using key combination Right ALT+O always my brower opening "Open file" dialog window. this is annoying always.

Many sites write that it can not be changed?

Why does the browser open this dialog with this shortcut when there is another shortcut for it? Ctrl+O. Why two another shortcut doing te same job?

About a month ago, I had no issues taking a screenshot of what's displayed or entire page. Now, whenever I take a screenshot, it copies only 3/5's of the page (from the left margin to roughly 3/5ths of the page both displayed or entire). My settings in about:config have not been changed (well, they are changed but at the same settings as when 'Take Screenshot' worked and now only copying 3/5ths of the page).