Diễn đàn hỗ trợ Firefox

black page (no video) when trying to watch spacex live or past videos https://www.spacex.com/launches/mission/?missionId=starship-flight-2

Hi, i'm a new firefox user and I've looked online for the last hour looking for a fix, but nothing. I have 2 monitors and when I click from one to the other or alt + tab, all my tabs become darkened, from white to having faded / being much darker, I'd want to not have that, is there a way?

Example of not darked darkened / faded tabs / darkened:

The netflix, giazo, imdb and youtube tab is not darkened. (not alt tabbed or clicked on second monitor). The other one is darkened, alt tabbed, clicked on second monitor.

I also posted on reddit, since i can't add more pictures, for better understanding, I will share here. Thank you.

https://www.reddit.com/r/firefox/comments/1871klh/firefox_tabs_become_darkened_when_clicking_on_2nd/

Hello, every once in a while Firefox on my Win 10 PC resets bookmarks, logins and saved tabs to ones that I used several weeks/months ago. I also remember that it once switched back to a newer instance a few days after switching to and older one. When I try to open the app, it also creates a new icon on my taskbar. This has happened around 4-5 times in the last year. Does any one have an idea what the problem might be? Thanks in advance!

I have 3 user accounts,Admin,Guest and Visitor.The Admin User account has updated successfully from version 113.0 to Version 120.0,the latest version.When I tried to update the Guest Account and the Visitor Account from version 113 to version 120 I got a notification "Firefox cannot update automatically,download the latest version"but I already have the latest version downloaded in the Admin account.When I checked in Programs there is one Firefox icon version 120.0 and two other icons 113.0.

i have just downloaded Firefox and i go to open in and it flashes open an close immediately. the occurs every time that i open the program. i have reinstalled it multiple times to see if that's the issue, used the Microsoft store to download it, the website, i tried to get the beta that didn't help and i was just wondering what the issues was and wondering if you could. i looked in the error message folder as well and its empty.

Hi there,

I just got some message saying that my Firefox version needed to be updated and by hastily taping on the ok button I did it without noticing that it had done it to a newer version no longer supported by my Mac OS.

I wanted to go back to the most recent version still supported by El Capitan 10.11.6, so I installed again the 78.10.0ESR and now all my browsing history from many years back is gone.

Could you please help me getting my history back?

Going through internet through several hours didn't bring any good solution to my problem.

Thanks on advance.

I have attempted to follow published instructions on how to manage extensions but the steps described are completely wrong. When I click the extensions icon, it opens the add-ons tab (does not present a list of extensions). There is no "gear" next to any of my extensions; just the on/off button and the .... button.

How can I force an extension to show on the toolbar?

Firefox is up to date (version 120.0).

Why is when I leave multiple windows open with multiple open in the windows, the next I go to look for the window it's closed. Sometimes it happens when Windows updates, sometimes it doesn't.

Why I'm asking this question here is ridiculous! I never get an answer. Anybody else had a issue with this? Is there a Browser that doesn't do this, I'm fed with FireFox!!

I'm having an issue with Fidelity Investments website logging me off after 5-10 minutes of inactivity. Before Fidelity's website redesign, I could go at least 30 minutes or more without having to login again. It seems now I have to login constantly.

I have contacted Fidelity, but the said it was a Firefox issue, however, I cannot find any information about this issue (or I don't know where to look).

How do I extend the time before needing to login again? Thoughts on if is this even a Firefox issue or is it Fidelity's website?

Thank you!

I have been receiving the following error code 'PR_END_OF_FILE_ERROR' on several website on my Firefox browser. Sometime, not all the time, I get the same error message while trying to use YouTube, while other times the site loads but says that I am offline and no internet connection. I have done all of the fixes that they say to use online and nothing seems to work. YouTube will occasionally work but none of the thumbnails will show up. Then there are other site that work fine.

Hello! I have an issue whenever i enter a Fullscreen on any video from web my screen goes black and the same thing happens when i exit Fullscreen mode, kinda like an animation and i can't find the solution or the option for it in settings to disable it. I'm new to Mozilla Firefox so if i missed this simple option while exploring, please bare with me. Thank you!

Fix the problem ! If I set up a set of bookmarks and web sites to be opened on startup of Firefox, then use them and save that list forever until I change it.

That is how you product worked until this week. Now, it sucks. And why does the header say that my options are controlled by my organization ? This is my private computer, belongs to me, not any organization !

Themes do not stay locked since several updates back. It is ridiculous that every time you open the browser you need to go to settings and get 'dark theme' back on, when it is the only theme many of us with visual problems can use. MANY people have complained about this (read your own reviews). FIX IT! It's doubtless a five minute job to put this back the way it was.

Firefox has crashed repeatedly when I've switched tabs to my gmail in the past ~15 minutes. It happens in "troubleshooting mode" as well. I'm running firefox on a linux computer, and my ubuntu installation and firefox are both up to date.

Here's my crash id: bp-b079d597-fb83-4a69-ab65-896370231129

I'm trying to sign in with google to the blogspot link below, but when I try to sign in it just resets the page and doesn't sign me in. Please help.

https://elunajewelry-nc.blogspot.com/2023/11/twitter-tree-11-29-2023.html?lr=1