Forum der Gemeinschaft Firefox

hi for some reason twitch.tv or some other websites will no longer play videos on my pc and i have no idea why, firefox works fine on my laptop

On Firefox browser, I cannot Copy a file in Studio Code Server (within Home Assistant). SCS is open in HA in a Firefox tab. I get the error popup "Unable to read from the browser's clipboard. Please make sure you have granted access for this website to read from the clipboard." "Learn More" links to https://code.visualstudio.com/docs/remote/codespaces#_how-do-i-allow-vs-code-to-access-my-clipboard-for-reading and the "How do I allow VS Code to access my clipboard for reading?" section. But I cannot find similar settings in Firefox's Settings menu.

Any suggestions please on how to resolve this? I'm sure I used ~ a year back to be able to Copy a file ok in VSCode on Firefox. Thank you.

I've been using Firefox since forever but over the last couple of months, the auto translate subtitles (to English) hasn't been working when watching Youtube videos. There's a thread on the Youtube support site with nearly 40,000 posts of people with the same issue and tonight I was trying to watch a video where the hosts talk in Italian, so I use auto translate to English subtitles but no subtitles appear. It will show Italian language subtitles.

I've gone back through this Youtube channel's history trying videos I've previously watched from months/years ago when auto translate used to work but even they're not working now.

I decided to try the video in Edge browser and to my surprise the auto translate to English worked there. They also work in Chrome.

So what could be causing this issue on Firefox, which started about August time?

This is quite bizarre as I assumed all the processing/translation was done by Google/Youtube so in what way can Firefox be part of this issue?

To be clear, subtitles in the (foreign) language the people are speaking, works. Subtitles translated from that language to English (or other languages) has stopped working. Subtitles translated from that language to English IS working on Edge and Chrome browser.

Yahoo isn't loading at all for me, more specifically guce.yahoo.com. I have managed to get into the login.yahoo.com page and log in but after the log in process it goes to the first page again and gives me the same "The connection has timed out". I just installed the browser and this might make me not use it ngl. I have tried both clearing cookies and troubleshooting mode.

Hi, I used Firefox browser at work since it had the best add-in for tab groups (Simple Tab Groups). Unfortunately browser is not supported any more. Is there a portable version that can be run without installing, from Mozilla.

I read a post that indicated it was available from PortableApps, but am not conversant enough to know that it's 100% safe. Believe that it was able to be updated as well.

To whom it may concern,

I have an angular application accessing data from a 3rd party data provider. To get data, POST-requests are sent to the data provider REST API (https://capzlog.aero). The application works correctly using Google Chrome and Microsoft Edge. However, when using Firefox, the following error appears:

"Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://capzlog.aero/api/pel/public/externalsystemflights/GetMissingIDs. (Reason: CORS request did not succeed). Status code: (null)."

As the POST request contains basic authentication, a preflight-request (OPTIONS) is first sent to the data provider. This request fails when using Firefox (but not when using Chrome or Edge), see attached screen-shots.

I have spent 4 days on the internet trying to figure out a solution, but I could not solve the issue. I tried the following: 1) check the certificates of the 3rd party provider (https://capzlog.aero): There are no issues. 2) start Firefox in safe-mode, disactivating the "Enhanced Tracking Protecting", clearing the cache. 3) changing the following Firefox settings:

   security.enterprise_roots.enabled (true<->false)
   security.tls.version.min (1<->3)
   security.tls.version.max (2<->4)
   network.http.network-changed.timeout

I tried sending the "OPTIONS"-request using curl and it worked as expected:

curl --verbose -XOPTIONS -H "Access-Control-Request-Method: POST" -H "Origin: https://projectz.numericalsolutions.ch" https://capzlog.aero/api/pel/public/externalsystemflights/GetMissingIDs

• Host capzlog.aero:443 was resolved.
• IPv6: (none)
• IPv4: 156.67.9.80
• Trying 156.67.9.80:443...
• Connected to capzlog.aero (156.67.9.80) port 443
• ALPN: curl offers h2,http/1.1
• TLSv1.3 (OUT), TLS handshake, Client hello (1):
• TLSv1.3 (IN), TLS handshake, Server hello (2):
• TLSv1.2 (IN), TLS handshake, Certificate (11):
• TLSv1.2 (IN), TLS handshake, Server key exchange (12):
• TLSv1.2 (IN), TLS handshake, Server finished (14):
• TLSv1.2 (OUT), TLS handshake, Client key exchange (16):
• TLSv1.2 (OUT), TLS change cipher, Change cipher spec (1):
• TLSv1.2 (OUT), TLS handshake, Finished (20):
• TLSv1.2 (IN), TLS handshake, Finished (20):
• SSL connection using TLSv1.2 / ECDHE-RSA-AES256-GCM-SHA384 / secp384r1 / rsaEncryption
• ALPN: server accepted h2
• Server certificate:
• subject: CN=capzlog.aero
• start date: Dec 31 10:14:59 2024 GMT
• expire date: Mar 31 10:14:58 2025 GMT
• subjectAltName: host "capzlog.aero" matched cert's "capzlog.aero"
• issuer: C=US; O=Let's Encrypt; CN=R10
• SSL certificate verify ok.
• Certificate level 0: Public key type RSA (3072/128 Bits/secBits), signed using sha256WithRSAEncryption
• Certificate level 1: Public key type RSA (2048/112 Bits/secBits), signed using sha256WithRSAEncryption
• Certificate level 2: Public key type RSA (4096/152 Bits/secBits), signed using sha256WithRSAEncryption
• using HTTP/2
• [HTTP/2] [1] OPENED stream for https://capzlog.aero/api/pel/public/externalsystemflights/GetMissingIDs
• [HTTP/2] [1] [:method: OPTIONS]
• [HTTP/2] [1] [:scheme: https]
• [HTTP/2] [1] [:authority: capzlog.aero]
• [HTTP/2] [1] [:path: /api/pel/public/externalsystemflights/GetMissingIDs]
• [HTTP/2] [1] [user-agent: curl/8.6.0]
• [HTTP/2] [1] [accept: */*]
• [HTTP/2] [1] [access-control-request-method: POST]
• [HTTP/2] [1] [origin: https://projectz.numericalsolutions.ch]

> OPTIONS /api/pel/public/externalsystemflights/GetMissingIDs HTTP/2 > Host: capzlog.aero > User-Agent: curl/8.6.0 > Accept: */* > Access-Control-Request-Method: POST > Origin: https://projectz.numericalsolutions.ch > < HTTP/2 204 < cache-control: private < server: Microsoft-IIS/10.0 < access-control-allow-origin: https://projectz.numericalsolutions.ch < access-control-allow-credentials: true < x-aspnet-version: 4.0.30319 < x-powered-by: ASP.NET < date: Thu, 16 Jan 2025 07:12:32 GMT <

• HTTP/2 stream 1 was not closed cleanly: HTTP_1_1_REQUIRED (err 13)
• Downgrades to HTTP/1.1
• Connection #0 to host capzlog.aero left intact
• Issue another request to this URL: 'https://capzlog.aero/api/pel/public/externalsystemflights/GetMissingIDs'
• Found bundle for host: 0x55ecfa0a46e0 [can multiplex]
• Hostname capzlog.aero was found in DNS cache
• Trying 156.67.9.80:443...
• Connected to capzlog.aero (156.67.9.80) port 443
• ALPN: curl offers http/1.1
• SSL reusing session ID
• TLSv1.3 (OUT), TLS handshake, Client hello (1):
• TLSv1.3 (IN), TLS handshake, Server hello (2):
• TLSv1.2 (IN), TLS handshake, Finished (20):
• TLSv1.2 (OUT), TLS change cipher, Change cipher spec (1):
• TLSv1.2 (OUT), TLS handshake, Finished (20):
• SSL connection using TLSv1.2 / ECDHE-RSA-AES256-GCM-SHA384 / secp384r1 / UNDEF
• ALPN: server accepted http/1.1
• Server certificate:
• subject: CN=capzlog.aero
• start date: Dec 31 10:14:59 2024 GMT
• expire date: Mar 31 10:14:58 2025 GMT
• subjectAltName: host "capzlog.aero" matched cert's "capzlog.aero"
• issuer: C=US; O=Let's Encrypt; CN=R10
• SSL certificate verify ok.
• using HTTP/1.x

> OPTIONS /api/pel/public/externalsystemflights/GetMissingIDs HTTP/1.1 > Host: capzlog.aero > User-Agent: curl/8.6.0 > Accept: */* > Access-Control-Request-Method: POST > Origin: https://projectz.numericalsolutions.ch > < HTTP/1.1 204 No Content < Cache-Control: private < Transfer-Encoding: chunked < Server: Microsoft-IIS/10.0 < Access-Control-Allow-Origin: https://projectz.numericalsolutions.ch < Access-Control-Allow-Credentials: true < X-AspNet-Version: 4.0.30319 < X-Powered-By: ASP.NET < Date: Thu, 16 Jan 2025 07:12:32 GMT <

• Connection #1 to host capzlog.aero left intact

Here, a comparison of the "OPTIONS"-HTTP-request as sent by Chrome and by Firefox:

CHROME OPTIONS /api/pel/public/externalsystemflights/GetMissingIDs HTTP/1.1 Accept: */* Accept-Encoding: gzip, deflate, br, zstd Accept-Language: en-US,en;q=0.9a comparison of the "OPTIONS"-HTTP-request as sent by Chrome and by Firefox: Access-Control-Request-Headers: authorization,content-type Access-Control-Request-Method: POST Connection: keep-alive Host: capzlog.aero Origin: https://projectz.numericalsolutions.ch Referer: https://projectz.numericalsolutions.ch/ Sec-Fetch-Dest: empty Sec-Fetch-Mode: cors Sec-Fetch-Site: cross-site User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36

FIREFOX OPTIONS /api/pel/public/externalsystemflights/GetMissingIDs undefined Host: capzlog.aero User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:134.0) Gecko/20100101 Firefox/134.0 Accept: */* Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate, br, zstd Access-Control-Request-Method: POST Access-Control-Request-Headers: authorization,content-type Referer: https://projectz.numericalsolutions.ch/ Origin: https://projectz.numericalsolutions.ch Connection: keep-alive Sec-Fetch-Dest: empty Sec-Fetch-Mode: cors Sec-Fetch-Site: cross-site Priority: u=4 TE: trailers

And the response header as seen by Chrome:

CHROME HTTP/1.1 200 OK Content-Type: application/json; charset=utf-8 Content-Language: en Server: Microsoft-IIS/10.0 Access-Control-Allow-Origin: https://projectz.numericalsolutions.ch Access-Control-Allow-Credentials: true Set-Cookie: AppSettings=Culture=en-US&Language=English&CountryAlpha2=CH; expires=Fri, 31-Dec-9999 23:59:59 GMT; path=/; secure; SameSite=Lax X-Powered-By: ASP.NET Date: Thu, 16 Jan 2025 07:19:59 GMT Content-Length: 2

Here, a comparison of the Network Traffic as seen for Chrome and for Firefox:

CHROME 17:07:46.550256 IP ANYPC.57562 > 156.67.9.80.https: Flags [P.], seq 1480736564:1480737180, ack 2430285572, win 501, length 616 17:07:46.557654 IP 156.67.9.80.https > ANYPC.57562: Flags [P.], seq 1:393, ack 616, win 8212, length 392 17:07:46.557654 IP 156.67.9.80.https > ANYPC.57562: Flags [P.], seq 393:427, ack 616, win 8212, length 34 17:07:46.557683 IP ANYPC.57562 > 156.67.9.80.https: Flags [.], ack 393, win 501, length 0 17:07:46.557688 IP ANYPC.57562 > 156.67.9.80.https: Flags [.], ack 427, win 501, length 0 17:07:46.558334 IP ANYPC.57562 > 156.67.9.80.https: Flags [F.], seq 616, ack 427, win 501, length 0 17:07:46.558741 IP ANYPC.42786 > 156.67.9.80.https: Flags [S], seq 2926210792, win 64240, options [mss 1460,sackOK,TS val 2936933242 ecr 0,nop,wscale 7], length 0 17:07:46.562927 IP 156.67.9.80.https > ANYPC.57562: Flags [F.], seq 427, ack 617, win 8212, length 0 17:07:46.562962 IP ANYPC.57562 > 156.67.9.80.https: Flags [.], ack 428, win 501, length 0 17:07:46.563492 IP 156.67.9.80.https > ANYPC.42786: Flags [S.], seq 1974100572, ack 2926210793, win 65535, options [mss 1460,nop,wscale 8,nop,nop,sackOK], length 0 17:07:46.563514 IP ANYPC.42786 > 156.67.9.80.https: Flags [.], ack 1, win 502, length 0 17:07:46.565558 IP ANYPC.42786 > 156.67.9.80.https: Flags [P.], seq 1:1743, ack 1, win 502, length 1742 17:07:46.572094 IP 156.67.9.80.https > ANYPC.42786: Flags [.], ack 1743, win 8212, length 0 17:07:46.572094 IP 156.67.9.80.https > ANYPC.42786: Flags [P.], seq 1:161, ack 1743, win 8212, length 160 17:07:46.572133 IP ANYPC.42786 > 156.67.9.80.https: Flags [.], ack 161, win 501, length 0 17:07:46.572276 IP ANYPC.42786 > 156.67.9.80.https: Flags [P.], seq 1743:1794, ack 161, win 501, length 51 17:07:46.572421 IP ANYPC.42786 > 156.67.9.80.https: Flags [P.], seq 1794:3197, ack 161, win 501, length 1403 17:07:46.583942 IP 156.67.9.80.https > ANYPC.42786: Flags [.], ack 3197, win 8206, length 0 17:07:46.710020 IP 156.67.9.80.https > ANYPC.42786: Flags [P.], seq 161:638, ack 3197, win 8206, length 477 17:07:46.751327 IP ANYPC.42786 > 156.67.9.80.https: Flags [.], ack 638, win 501, length 0 17:07:46.754201 IP 156.67.9.80.https > ANYPC.42786: Flags [P.], seq 161:638, ack 3197, win 8206, length 477 17:07:46.754231 IP ANYPC.42786 > 156.67.9.80.https: Flags [.], ack 638, win 501, options [nop,nop,sack 1 {161:638}], length 0$

FIREFOX 17:08:28.962851 IP ANYPC.35980 > 156.67.9.80.https: Flags [S], seq 2319755284, win 64240, options [mss 1460,sackOK,TS val 2936975646 ecr 0,nop,wscale 7], length 0 17:08:28.972248 IP 156.67.9.80.https > ANYPC.35980: Flags [S.], seq 1053801102, ack 2319755285, win 65535, options [mss 1460,nop,wscale 8,nop,nop,sackOK], length 0 17:08:28.972330 IP ANYPC.35980 > 156.67.9.80.https: Flags [.], ack 1, win 502, length 0 17:08:28.974266 IP ANYPC.35980 > 156.67.9.80.https: Flags [P.], seq 1:1894, ack 1, win 502, length 1893 17:08:28.987389 IP 156.67.9.80.https > ANYPC.35980: Flags [.], ack 1894, win 1026, length 0 17:08:28.987433 IP 156.67.9.80.https > ANYPC.35980: Flags [P.], seq 2921:3937, ack 1894, win 1026, length 1016 17:08:28.987461 IP ANYPC.35980 > 156.67.9.80.https: Flags [.], ack 1, win 502, options [nop,nop,sack 1 {2921:3937}], length 0 17:08:28.987598 IP 156.67.9.80.https > ANYPC.35980: Flags [.], seq 1:1461, ack 1894, win 1026, length 1460 17:08:28.987647 IP ANYPC.35980 > 156.67.9.80.https: Flags [.], ack 1461, win 524, options [nop,nop,sack 1 {2921:3937}], length 0 17:08:28.987682 IP 156.67.9.80.https > ANYPC.35980: Flags [.], seq 1461:2921, ack 1894, win 1026, length 1460 17:08:28.987707 IP ANYPC.35980 > 156.67.9.80.https: Flags [.], ack 3937, win 547, length 0 17:08:28.994553 IP ANYPC.35980 > 156.67.9.80.https: Flags [P.], seq 1894:2052, ack 3937, win 547, length 158 17:08:29.005007 IP 156.67.9.80.https > ANYPC.35980: Flags [P.], seq 3937:3988, ack 2052, win 1025, length 51 17:08:29.005007 IP 156.67.9.80.https > ANYPC.35980: Flags [P.], seq 3988:4057, ack 2052, win 1025, length 69 17:08:29.005700 IP ANYPC.35980 > 156.67.9.80.https: Flags [.], ack 4057, win 547, length 0 17:08:29.006086 IP ANYPC.35980 > 156.67.9.80.https: Flags [P.], seq 2052:2151, ack 4057, win 547, length 99 17:08:29.006123 IP ANYPC.35980 > 156.67.9.80.https: Flags [P.], seq 2151:2577, ack 4057, win 547, length 426 17:08:29.008948 IP ANYPC.35980 > 156.67.9.80.https: Flags [P.], seq 2577:2615, ack 4057, win 547, length 38 17:08:29.018116 IP 156.67.9.80.https > ANYPC.35980: Flags [.], ack 2615, win 1023, length 0 17:08:29.018116 IP 156.67.9.80.https > ANYPC.35980: Flags [P.], seq 4057:4095, ack 2615, win 1023, length 38 17:08:29.024518 IP 156.67.9.80.https > ANYPC.35980: Flags [P.], seq 4095:4322, ack 2615, win 1023, length 227 17:08:29.024518 IP 156.67.9.80.https > ANYPC.35980: Flags [P.], seq 4322:4364, ack 2615, win 1023, length 42 17:08:29.024943 IP ANYPC.35980 > 156.67.9.80.https: Flags [.], ack 4364, win 570, length 0 17:08:35.342337 IP ANYPC.42786 > 156.67.9.80.https: Flags [.], ack 1974101210, win 501, length 0 17:08:35.349317 IP 156.67.9.80.https > ANYPC.42786: Flags [.], ack 1, win 8206, length 0

I really do not know what to do anymore to solve that problem.

As the problem is impacting hundreds of users, I really hope there is a solution.

In advance thanks for your help.

Hi,

Recently, I have noticed that when using Firefox, if I try to view an embedded YouTube video on sites that I visit regularly, instead of the embedded video playing, I now get a message on the video window that says, "Sign-in to confirm you are not a Bot. However, there is no option to 'sign-in', so I am not able to view the video. (screenshot attached)''

I did a little testing and discovered 2 things which I thought were noteworthy:

1) If I turned-off my VPN (Norton), then the embedded video plays in Firefox without any issues.

2) If I access the same site within the Chrome browser then the embedded video play regardless of whether I have the VPN service On or Off.

Strange, but true !!

I cannot find any Firefox Settings that address this issue.

Any clues?

Thanks.

Is there any Add-on that will shoot a scrolling screenshot (full page screenshot)?

For reference, there's an excellent extension on Chrome/Brave called "Go full screen" which has simple but perfect functionality, one-click automation, saves as either .pdf or .png format to your downloads folder.

https://chromewebstore.google.com/detail/gofullpage-full-page-scre/fdpohaocaechififmbbbbbknoalclacl?hl=en-US

The other day I accidentally pressed a keystroke that changed a Firefox setting, and now it thinks I'm on a mobile device/displays sites in mobile view where possible by default. This has persisted despite restarts of the browser and the computer and has been happening since Sunday (Australian time). I've tried opening the Responsive Design dev tool and I've sent screenshots to a techsavvy friend (I'm totally blind and use a screen-reader, so couldn't tell this was happening until I tried to use a site that had a radically different layout in mobile view), and aside from not seeing an exit button or a switch to change device mode, he couldn't tell what was going on.

I'm stuck and need help! I would like to unmobile my Firefox!

I've freshly reinstalled Windows 11 and after trying to access and watch a movie on any of these sites I get an error (see the pictures).

Browser version: 137.0.1 (64 bit) Widevine version: 4.10.2891.0

Already tried to disable/enable DRM. Already reinstalled firefox. Already manually installed widevine. No clue what could be causing this issue.

Hi,

I'm currently on Firefox Developer Edition version 136.0b6, and for some reason the search bar no longer displays the https:// header. Is it possible to turn this back on?

So I need to update my Firefox Browser to 128 BUT somehow "Updates disabled by your system administrator." and as I am the only user I have never set up an administrator.

So I have had a look and I don't understand most of what I am reading.

So about:policies.... DisableAppUpdate true So how do I change that? I have looked at Reg Editor but have no idea what I am looking at.

It took me a long time to update to Firefox 121 because I did not like some of the changes Mozilla did to it like spacing between Bookmarks in the dropdown so to update again is a big thing for me. Attached as much as I think is relevant. Any help will be much appreciated.

I have various shortcuts saved on the shortcut page comes up after logging in. Its set to 2 rows.. I use it every day. Used it this morning and working perfectly. Been out and when I came back the page is totally blank. I've tried sytem restore to 5th October but makes no difference. I use Windows 10 and read that Firefox are continuing to support Windows 10 I'm visually impaired and use a desktop PC with a large screen. I'm not PC techically knowledgeable. How do I restore my shortcuts or how do I re create them?

I have lost my tabs after the recent update. They used to show all tab groups in toolbar icon as mentioned here (https://support.mozilla.org/en-US/kb/tab-groups) in manage tabs section. Only the groups that were open are retained, the groups which were closed are lost. They contained important tabs which I haven't bookmarked. I didn't see any policy of removal of inactive tab groups after certain time, any help would be really appreciated. I use the desktop app on Linux.

During what I assume are high bitrate sections of YouTube videos (e.g. lots of movement, high resolution) YouTube will constantly drop frames.

Video for example: https://www.youtube.com/watch?v=KLuTLF3x9sA

I have tried: • Safe Mode • Installing the Flatpak and testing in that, which also has a fresh profile as I don't use the Flatpak version • Testing different related about:config settings – I can't remember them all now, but I tested every one I found googling that is related to the issue or hardware acceleration.

Hardware acceleration is for sure working. Turning it off makes the video drop to one or two FPS.

Chromium has no problem with the same video. However, you can see from the screenshots that both read the resolution/scaling of my screen differently, and it implies that Firefox is rendering something like 6314 x 3552 while Chromium is rendering at UHD, the resolution of the screen and my video. If I turn off all my Global Scaling, Firefox stops dropping frames (the same info box on YouTube states resolution is UHD), reinforcing my theory about scaling being the issue. Both are confirmed to be using native Wayland.

Hi. There is a problem with video playback when skipping through the video using a playback bar. The video (but not audio) freezes at the spot when one skippes to another part of the video and re-establishes after a while (not so short while) to the part of the video that is currently played. I'm using Linux Fedora.