Diễn đàn hỗ trợ Firefox

I was watching anime today on some site and my firefox was downloading many files without my knowledge into my download folder. I'm worried that it can be some viruses? This is a screenshoot. Should i be worried? Thank you for help.

my pc had friend so when i got a new one i lost all of my firefox data, how can i get all of it back so i was forced to start all over, i lost all my, bookmarks, tabs, history and saved passwords

Any way to cast to chromecast with firefox?

It's annoying that I have to use Chrome or Edge to cast youtube to my TV.

Or use my phone. But it's charging atm. So very annoying my favorite browser can't do this simple thing. But all the other browsers can.

Until recently, I resisted allowing updates for Firefox because of the announcements of changes to prevent access to some technical kinds of website which I use. These include the public websites of the Paris Observatory which include useul informational ftp pages with important text, data and software files.

  I did recently allow a Firefox update, and now I find that I am cut off from access to these ftp pages. 
  How can I re-enable access to ftp? If it can't be done in the new version of Firefox, how can I return to an older Firefox version that does allow such access?

When I use Firefox on my Mac, no matter what I have tried it keeps defaulting to the dreaded Bing Search Engine. I understand it has to do with Microsoft, but I don't use any of their products because I don't like them. In settings/search I can restore the default search engines & delete Bing, but it always reverts back to insisting on using Bing again. I have followed several threads about this issue without permanent resolution. Help??

I cannot removed total adblock and especially the ad for total adblock. I tried to follow the instructions, but they do not bring up the menu that they are supposed to bring up. HELP

Windows auto-updated and my bookmark toolbar disappeared

I still see all of my bookmarks in the "Bookmarks" list, but none of them appear across the top of my screen, where they usually are and I can't put them back.

When I download a file before I even have a chance to save or open the file Firefox downloads the file and puts it on my desktop. I have to look at lots of .pdf files and this a bit annoying as I have to keep deleting all the files I dont want. The dialog box opens and I always choose open rather than save but Firefox has already saved a copy to my desktop. How can I stop this autosave please ? Cheers.

not able to sign in on my account or track packages on FEDEX website. I talked with FEDEX and they say to try another browser and when I do the site works. I have tried taking off enhanced tracking and restarting in safe mode I cleared cookies and all. Is there a fix for this?

I have no audio in youtube when using Firefox only. Audio works fine in other browsers.

I am tech-challenged and this has been going on for a while, but I now really need to use youtube, but do not want to use a browser other than Firefox.

Thank you.

I am still stumped as to why Firefox crashes, IF and that's a big IF, my session is restored, why my tabs are blank but the website names are still on the tabs. Click to reload sometimes works, while other times it doesn't. Google, Facebook, Twitter, WordPress websites I am logged into and others will not load anymore for at least an hour. The only way to access them is to open a private window. What is happening to this browser that causes these sites to not load anymore? Any clearing the browser history/cache doesn't bring these sites back. They will only come back an hour after the crash. I've also cleared my ISP cache too (ipconfig/flushdns).

My microphone does not work properly in Firefox, it sounds very low and bad.

I have a Corsair HS35 Stereo headset and my sound driver is Realtek HD Audio 2nd output.

I have tested my microphone in other browsers and other kind of applications like Google Chrome, Brave, Windows Voice Recorder, WhatsApp Desktop, etc. and the microphone works fine. It only works badly in Firefox.

I did the test with a portable version of Firefox, and, as with the installed version, the microphone was malfunctioning.

I've also noticed that Firefox lowers the microphone volume automatically (how do I prevent this?), yet even if I turn it all the way up it still sounds very low and bad.

What can I do about it?

Thanks for the answers

I'm using Firefox version 99.0. Windows 10, version 21H1, OS Build 19043.1586 I am on the web page for Yahoo Mail. When I need to print an email 1. If I print using the system print dialog: The heading of the email (Headline,From, To, and Date) prints. The rest of that page does not print. The text of the second page prints.

I don't want the tabs + search bar to show when the mouse reaches the top of the screen while in full-screen mode, I have tried "userChrome.css" solution provided in this link "https://support.mozilla.org/en-US/questions/1092572", but it didn't work for me, I would appreciate any help, thank you.

Despite i selected "always show" in the options of the menu toolbar, as indicated in many answers and guides, Mozilla keeps randomly to show or not to show (most of the times) my bookmarks in the top bar. The bookmarks are still there if i press on top on bookmarks in fact they appear, simply they are not anymore in the bar. I have reset several times to default from the options but it doesnt change anything. Any clue? Thank you