Diễn đàn hỗ trợ Firefox

started using mozilla / firefox ages ago. over time my list has gotten so huge i need to manage it. i am sure i have duplicates and the recent update i did in November imported backups and imported bookmarks from other browsers. some i need and some i do not. it would take weeks for me to go through and move the ones i want and deleted invalid ones. i can only spend maybe 10-20 minutes a day trying to look at the bookmark list. it is so massive that it like trying to read a thousand page novel one page a day. i need to trim it down and remove duplicated marks and manage folders.

A .mp4 video clip on the web will play through f/f but with no sound. A .mp3 audio clip plays ok. The laptop sound controls are not muted. The mp4 clip shows a bar at the bottom and on the right there's a symbol that looks like a speaker with a bar through it. There seems no way to change this. The mp4 clip will play perfectly in WMP and from the website on a Samsung phone.

For some time now - two or three weeks - I experience R_END_OF_FILE_ERROR on many websites. It is only under Firefox. And not on all sites. One example is coronavirus.bg. I can't open it under Firefox. I use Firefox v.75 on Windows 7. I tried:

• checking TLS settings - screenshot attached. Seems fine.
• clearing the cache; didn't help.
• turning network.dns.disableIPv6 to 'true'; didn't help.
• turning network.dns.disablePrefetch to 'true'; didn't help.
• restarting Firefox with add-ons disabled; didn't help.
• scanning for malware; Malwarebytes didn't find any.

I am also attaching my browser test results from ssllabs.com.

I honestly don't know what to do and what is the issue. Please advise.

Two computers updated to 74.0 (64 bit) today. Prior to the update no problems. After the update several sites are ignored on both machines. No errors, warnings, etc. It is as if you never entered the url. Tried about 50 sites, found 4 that don't work (ones I use regularly). Found a thread about 70.1 that sounded similar which suggested setting dom.storage.next_gen to false. Checked and it was already false. Tried safe mode - no difference.

I seem to have got myself into a real mess with this. Attempted some of the fixes without success. Decided that that a re-install might work. couldn't find firefox.exe in programs or apps but firefox helper is there, but refuses to uninstall. Attempted new download which was OK but installation failed. Are there any easy answers to this. Edge works ok and have checked for malware. I'm not very tech savvy. Any help would be appreciated

Everything works on other device, but on this clean install of a Windows machine, I can't get to download any file from Google Drive. I've reinstalled Firefox, downgraded the version, deleted cookies multiple times, disabled all extensions, went into incognito, nothing works!

The page isn’t redirecting properly

An error occurred during a connection to doc-0g-70-docs.googleusercontent.com.

   This problem can sometimes be caused by disabling or refusing to accept cookies.

From network tab, FF is constantly doing these two requests:

Request URL:https://doc-0g-70-docs.googleusercontent.com/docs/securesc/xxx Request Method:GET Remote Address:[2a00:1450:400e:808::2001]:443 Status Code: 302 Version:HTTP/2

Request URL:https://docs.google.com/u/0/nonceSigner?nonce=6hl1trmj27fmu&continue=https://doc-0g-70-docs.googleusercontent.com/docs/securesc/xxx Request Method:GET Remote Address:[2a00:1450:400e:809::200e]:443 Status Code: 302 Version:HTTP/2

Help me!

This has happened to 5 individual computers updated at different times today. As each one updates it goes off line. LAN works fine but Firefox seems to have altered something in windows 10 OS that kills that individual computers connection to the internet.

Was able to connect to Microsoft to play sollitare games - clicked on GET and error message come up. It said "cannot open this page" then it said "The address wasn't understood' . then it said Firefox doesn't know how to open this address, because one of the following protocols (ms-windows-store) isn't associated with any program or is not allowed in this context." then it said "you might need to install other software to open this address." I need help. I know nothing about fixing computer problems please help!!!

Look, this is a huge problem because this message isn't just showing up on my Fire Fox browser, it's also on my TOR browser. I'm not seeking to fix TOR here, I'm just saying that it's on there too and TOR uses Fire Fox - this message appears nowhere else on my PC or browsers. My system was just purchased brand new in Feb. This message did not display when I dl either browser. I've NEVER downloaded ANY Avast or anything like it, I use Windows Defender and that's it. I'm not a techie - but I'm like really neurotic over hard drive space - I don't download ANYTHING unless I absolutely HAVE to with the exception of browsers. I only download those from their official websites though. I do play some games, I've only downloaded games from Steam, Origin, and Utomik. I do have all of their clients on my PC. Other than that, there's been NOTHING I've dl. I only included that info because I thought it might help. Can someone PLEASE help with this. I tried to look at the registry, I'm not seeing anything that seems amiss but I need more specifics - I've read the other questions and answers on this - but I don't know HOW to change anything to see if it helps. I already am scared to death to touch the registry.

I've tried most of the Netflix (website's) suggestions to troubleshoot why videos won't play with Firefox; none could fixed the issue. The only suggestion I did not try is to disable Private browsing mode simply because I don't know how to do it and Firefox Support does not specifically address this task. I've also tried the suggestions provided by various forum responders to this issue ... again, no fix! Can someone please provide specific instructions on how to disable Private browsing?

I'm tired of switching from FF to IE every time I want to watch a movie.

On every boot ff69 opens two windows, one empty and one with opened tabs, every time i manually close the empty window. Next boot it reopens it. Same with laptop. On occasion if i close the window on laptop it'll only open main window on desktop on next boot. But this might only happen once and next boot the second window starts opening again for no reason. How do i make ff stop opening two windows on boot?

I'm running latest Firefox 68.2 64bit on Windows 7x64 Ultimate. This is a new problem, I can plat any media with all my apps and on other sites but Accuweather News https://www.accuweather.com/en/videos/trending-now/co15rob4 videos are suddenly not playable. PS: Firefox Help was useless on this query/error. None of the results were relevant. Am I going to have to "Google Search for the solution? HELP please and thank you.

Opens to blank page, no toolbar, all buttons don't work. I can type into URL window & will take me to a webpage but that's it. I am sending this from Safari because I can't use Firefox.

Put my ad killer back and keep your suggestions to yourselves from now on. It didn't speed anything up, it just slowed me down as I have to navigate the non stop ads from ATT...again!!

it started yesterday. I've been trying to sign into this particular website for hours and i thought something wrong with website but it turns out i can sign into it when i use other browsers like chrome. https://www.goodreads.com/

I'm having a lot of trouble with the URL autocomplete function not working. I have been trying to solve this for a couple days and nothing is working to enable the URL autocomplete. Here are some of the things I have tried - does anyone have any ideas?

Thanks so much!

-Made sure the browser.urlbar.autoFill item is set to 'true' -Adjusted Firefox History settings to 'Remember History' -Adjusted Firefox Address Bar settings (Browsing History, Bookmarks, and Open Tabs are checked) -Cleared cache and cookies -Reset Firefox several times -Reinstalled Firefox (without deleting profile and Firefox data)

I have attached screenshots of how my 'about:config' looks, as well as the 'Important Modified Preferences,' in case there's an error that someone else can catch.

(I am running Firefox 68.0.2 on macOS Mojave Version 10.14.5)

I'm using firefox 67.0.1 It was fine 2-3 ago. Now when i change from tab a to tab b and then back from tab a firefox refreshing its tab it's very annoying when i watch video (youtub*) and checking my email and back to watch the video firefox refreshing it page so the video replayed themselves. I know it's for memory management. but can it be setting to stop??

I recently copied my Old Firefox profile to another folder and refreshed my Firefox Dev Edition browser. After refreshing, I copied all of the content of my old Firefox profile to the new default profile and then started the browser. Upon starting it, the browser was working with all of my previous add-ons. But whenever I close the browser and open it again, the icons of the add-ons at the overflow menu are not showing though there is space for the add-ons. Whenever I click at the add-ons, the error that 'Access to file was denied' - `The file at moz-extension://b408b31d-945f-43cb-881e-b1f4071942b6/index.html is not readable` shows up. I tried it with creating other profile folders and then copying my old profile data but it still always happens.

Any help?