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How to stop video auto play in web pages?

The "Auto play" setting is set to "Block Audio & Video" and the "Page Info" confirms it (a snippet of the page info is attached for reference), however the video in the web page still continues to play automatically!!! Please note that no web sites has been granted an exception to this privacy setting. This issue is for all the websites.

Browser version: 78.0.2 OS: Windows 10 Build 18363

Thanks

I'm running Firefox 78.0.2 on Linux.

If I try to register my FIDO2 token with user verification enabled, I don't get a pop-up to fill in my token's pin. It does work with Chrome on Linux and with Firefox 78.0.2 on Windows. Chrome seems to use a browser-embedded input mask while Firefox on Windows calls some Windows API. I guess that this API call is the one not working properly on my Linux system (but Chrome has to be using one to access the token, too) or that the pop-up doesn't get drawn/shown e.g. due to me using i3 as a window manager.

Does anybody have an idea how I could go on from here?

Hi there,

I'm trying to disable insecure ciphers in TLS 1.2 since 1.3 isn't widely supported yet.

I'm using this to determine whats secure: https://browserleaks.com/ssl

I cant find any option to disable these two ciphers:

0x009c TLS_RSA_WITH_AES_128_GCM_SHA256 0x009d TLS_RSA_WITH_AES_256_GCM_SHA384

Thanks :)

So I have a .json file that I exported from the keeper application and I am trying to import it to my Firefox lockwise but I am having trouble. I tried deleting key4.db and logins.json and replacing them with the keeper .json file which I renamed logins.json. Any help would be appreciated.

At my workplace, if I am logged into my workplace network, I am supposed to be able to bypass the multi-factor authentication step when visiting secure workplace sites. However, after a recent update of Firefox (several weeks ago), I am asked to multi-factor authenticate at those sites even when I'm logged into my workplace network. (This is not the case in other browsers.) I suspect the change is related to a new security setting that cloaks my IP address. How can I tell Firefox NOT to cloak my IP address when accessing certain sites? I tried turning off the tracker but that didn't work.

When I download a document from an email or a website, I receive a message that Firefox has successfully "sanitized" the document. Then I discover that the hyperlinks, such as an RSVP, no longer work. How can I stop Firefox from destroying hyperlinks?

I forgot the password for my second firefox account, whenever i try to initiate the password change i would get an email from Firefox Accounts <accounts@firefox.com> with links but unfortunately the link and as a matter of fact the whole email is kind of broken, the link the i was provided was sending me to the the firefox accounts page and it says "Bad Request" Invalid parameter:ui, i can't log in, i cant change passwords, i tried multiple times but no solutions so far. tried refreshing, tried copying the link manually, something is missing.

Help! Please :)

I just updated Firefox and privacy settings have changed. For the worse, seemingly.

Under Options for Privacy and Security there is a setting for "Send web sites a 'Do Not Track' signal". And, I am given only two choices: 1) Always 2) Only when Firefox is set to block known trackers.

I want a third option. "NEVER." These requests are optional; they are widely ignored; and they are -- in fact -- just another data point that is collected. "Never" has always been an option in Firefox. Why is it missing now?

Is there a setting in about:config I can change to ensure that "Do Not Track" is never sent?

Thanks! Kirk

Both Avast and Malwarebytes alert when I open a new webpage or navigate through a website. Both state that they have aborted a connection to mobiclean.xyz identifying it as adware. The identified file doing the redirecting is c:\Program Files (x86)\Mozilla Firefox\firefox.exe. This is only a recent issue within the last few updates. I have scanned using both programs and they indicate that there isn't a threat (Avast both smart scan and full scan). Malwarebytes classifies the event as "RTP detection" and Avast classifies it as "Other:Malware-gen [Trj]. I am not sure if this is a false positive, some kind of Trojan, or the code in firefox.exe is being misidentified. Has anybody else experienced this? If so, what did you do? As of this writing I am scanning with Spybot Search and Destroy. Any information is appreciated. Thanks.

For the last 3 days Thunderbird has been unable to access my Gmails...

The same thing happened in early May after a Thunderbird update. The suggested fix was to enable Google access to 'less secure apps', until such time as Thunderbird was fixed.

Apparently whatever was fixed has now been unfixed; it seems that Thunderbird has once again become a 'less secure app'.

I have once more enabled Google access to 'less secure apps', so I can get my messages again. I don't think right to compromise my security for the sake on one piece of software. I have used Thunderbird for many many years, and am reluctant to have to abandon it...

On one of my web sites I have to verify my identity. There is a box to save the verify on the computer I am using which I check. When I go back into the site I have to redo the same process. This started 3 weeks ago. I have no problem with Edge

I changed my password for my two Thunderbird accounts. Now both passwords have disappeared from the password manager. How do I add the accounts and passwords back to the password manager? Thanks.

Yes, I used my favorite search engine for this a thousand times...

"places.history.enabled" doesn't seem to do it, I gave "browser.history.maxStateObjectSize" = 1 a try to no avail, "browser.urlbar.autocomplete.enabled" doesn't do what the name promises...

So, how do I avoid the history of visited URLs to be stored when using Firefox on Android? (I'm aware that deleting on exit might do the trick, but who explicitly exits their browser on mobile?!?) Has this feature been intentionally removed, as I see old screenshots with an explicit option?

Dear community,

Transferring my passwords from an old profile backup (v 49) to a profile in a newer version of Firefox (v 77.01). I'm copying across the logins.json and key4.db files like it says here: https://support.mozilla.org/en-US/kb/recovering-important-data-from-an-old-profile#w_passwords. but it still doesn't seem to show my passwords in the new Firefox version when I look in the preferences. I did happen to notice that the key file version is named 'key3.db' in the old profile whereas the corresponding file in the new profile is 'key4.db'. I don't think they're compatible. My question is can I move my passwords from the old profile to the new profile in Firefox v 77.01? Please can you tell me if I can do it offline/locally like this? I don't want to do it with Firefox sync. I'm currently having problems signing into Firefox sync so that isn't an option.

Kind regards,

Matt

(I don't know why but my reply won't show up. So I'm posting the same thing here.)

So I made more research and made my question simpler. FYI I reseted my firefox and since then I've changed settings only via about:preferences and user.js.

Situation A:

(1) Set these preferences.

• permissions.default.geo =2
• network.cookie.lifetimePolicy =0
• privacy.sanitize.sanitizeOnShutdown =true

(2) Go to https://www.jma.go.jp/jp/highresorad/index.html

• You'll see a pop-up message that says "位置情報を取得できませんでした。".

(3) Check the box down below (今後このメッセージを表示しない。), and close that message. Then press f5.

• You'll see that the pop-up message won't show up anymore.

(4) Open a new tab. Then close the previous tab. Revisit the site.

• You'll see that the pop-up message doesn't show up.

(5) Close all Firefox windows. Then open Firefox and visit the site.

• Expected: The cookies should have deleted. The pop-up message will show up.
• Actual Result: The pop-up message doesn't show up.

(6) Do Ctrl-Shift-Delete. Then press F5.

• You'll see the pop-up message shows up this time.

Situation B:

(1) Set these preferences.

• permissions.default.geo =2
• network.cookie.lifetimePolicy =2
• privacy.sanitize.sanitizeOnShutdown =true

(2) Go to https://www.jma.go.jp/jp/highresorad/index.html

• You'll see a pop-up message that says "位置情報を取得できませんでした。".

(3) Check the box down below (今後このメッセージを表示しない。), and close that message. Then press f5.

• You'll see that the pop-up message won't show up anymore.

(4) Open a new tab. Then close the previous tab. Revisit the site.

• Expected: You'll see that the pop-up message doesn't show up.
• Actual Result: You'll see that the pop-up message does show up.

(5) Close all Firefox windows. Then open Firefox and visit the site.

• You'll see that the pop-up message shows up.

(6) Do Ctrl-Shift-Delete. Then press F5.

• You'll see the pop-up message shows up this time.

(Original post below.)

Hello.

(Sorry about messy English.)

(1) I set preferences as below.

   network.cookie.lifetimePolicy =0 (accept cookies normally)
   privacy.clearOnShutdown.* =true (define what data is cleared when Firefox is closed)
   privacy.sanitize.sanitizeOnShutdown =true (make Firefox clear the data when it's closed)

These settings should make Firefox clear all my cookies when closed. But Firefox kept some of it. Firefox cleared the login state, but some site data such as volume control on Nicovideo's video player were kept. That means when you login to the site and watch a video at 17% volume, then close Firefox without clicking the logout link, reopen the same page, you'll see yourself logged out, but when you login to the site, you'll see the volume is set to 17% on the video player, not default 100%.

(2) Now I changed one setting.

   network.cookie.lifetimePolicy =2 (cookies are now for current session only)

This didn't work as intended either. Firefox sure cleared all the cookies, but it did in a weird way. The login states were working as intended. But some site data are not sheared between tabs. That means when you watch a video at 27% volume and close the tab, then revisit the same page, you'll see the volume on the video player is now set to the default 100%.

(3) And finally I found the one caused this.

   dom.ipc.processCount =1 (Firefox must run on a single process)
   network.cookie.lifetimePolicy =2 (same)
   privacy.sanitize.sanitizeOnShutdown =true (same)

I honestly don't understand why this works, but this way everything seems to be working properly. All cookies are sheared between tabs and they are cleared when Firefox is closed.

My question is:

(a) Why did this happen? Especially the situation (1) makes no sense to me. Why Firefox left some cookies when I told it to clear the cookies on shutdown?

(b) Is there any way to share data between processes? I don't want my Firefox to be single-processed slow browser.

Thanks.

I downloaded some videos and when I closed my browser then checked in the download folder & their was none of that videos. And in the browser download history file is showing "file is showing moved or missing". Please Help me!