Firefox Community Forum

Hello,

For a few days now I've been unable to use Google tools via Firefox (I can't tell if this is due to an update or not).

As soon as a document (usually an editable or navigable area) is opened on the page, it appears completely black. Interactions work correctly at first glance (it's possible to click, write, interact with content that isn't displayed. The problem seems to be purely visual.

I've encountered the problem in all Google Sheet or Docs documents (including when I'm making a new one) and on Google Maps, regardless of location (in the case of Google maps, a notable point is that the map is displayed and then turns black after one or two seconds).

I don't have this problem on another browser, I have it in PM.

Do you have any ideas on how to find the cause and fix the problem?

Have a nice day!

I use Primary Passwords on important sites. Since v136 installed this morning, no matter what site I OPEN Firefox to, even search sites, the Primary Password is requested. If Firefox is already opened, if I open the "unimportant" site, no password is requested.

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.

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.

I have Firefox's New Tab set as my home page, since I'm choosing to divorce myself from political doomscrolling for the next four years. The New Tab page is perfect for having frequently visited sites at the top, Pocket stories I can curate in the middle, and what used to be a history of articles and sites I've read most recently in "Recent Activity" along the bottom. Within the last few days, "Recent Activity" has been blank, and will no longer keep track of articles I've recently read. I've tried clearing the browser history and cookies, and it came back for a moment, but quickly went back to being blank. And the major downside to clearing the browser is that my four rows of most frequently visited sites gets wiped clean also, and I have to spend time getting them back on the list. I do not have Firefox set to automatically clear history upon closing it. I've tried turning "Recent Activity" off and on with the page's Settings (cog in the bottom right corner). I'd really like to have this back, as it can help me find recently read content (especially Pocket content) easier than wading through the History log. Any help would be appreciated.

I use the IRS form filler to pay my taxes...have for years with Firefox browser. This year (for 2024 return) when I sign into the site the 1040 form does not display correctly. the boxes are to the right and below the actual placement. I emailed IRS who said it is a setting in Firefox. I tried the site using Microsoft EDGE and it displays correctly. I have searched for possible solutions and tried them all like using/on and off excelerator, letting Firefox chose size and colors of sites, turned off Noton etc. I posted another question here but no replies or looks so maybe I did something wrong so I will try to post again. I have W10 fully updated and Firefox too up to date. I understand I could use Edge but never had to and prefer to use Firefox as I have before. any suggestions would be appreciated or where I can report a possible issue with Firefox. I have attached a sample. thank You

This code in mozilla.cfg used to overwrite new tab, but as of latest firefox 136.0b1 no longer works. Any way to fix this? There error in Browser Console.

// mozilla.cfg needs to start with a comment line var {classes:Cc,interfaces:Ci,utils:Cu} = Components;

/* set new tab page */ try {

 Cu.import("resource:///modules/AboutNewTab.jsm");
 var newTabURL = "file:///D:/Documents/images/home.html";
 AboutNewTab.newTabURL = newTabURL;

} catch(e){Cu.reportError(e);} // report errors in the Browser Console

I have just got a new laptop and installed everything in relation to Firefox onto it. I have used the Nordpass extension for a couple of years and on the old laptop this is version 5.23.13 updated 16/10/24. On visiting the add-on and extension site today there is only a legacy version 4.33 updated 2y ago which clearly no longer works. Where has it gone. Clearly I am going to ask the same question of Nord, but I hope you can help.

So I understand this: https://support.mozilla.org/en-US/kb/xframe-neterror-page and the reason it exists, but I need to find a way to turn it off because it's literally blocking me from accessing the Library of Congress webpage inside the same browser for my job. It's not a malicious site, but I can't figure out how to tell Firefox to stop blocking it as if it was a malicious site.

Help.

W11 24H2

I just received an update to FF 137 and my userchrome.css which is set to show tabs BELOW the toolbars (i.e. a logical place above the relevant pages and not halfway up the toolbars etc.) has stopped working. Checked the toolkit.legacy etc and it's still enabled.

Any ideas to fix this are welcome.

Update fails, apparently in post-refresh hook with the symlinks in /var/snap/firefox/common/snap-hunspell/ pointing to non-existent files in a non-existent directory (e.g. to /snap/firefox/5701/usr/share/hunspell/en_US.aff where /snap/firefox/5701/ does not exist).

A thunderbird update (128.6.0esr->128.6.1esr) fails very similarly.

I used snap to update manually in order to see error messages:

donald@dhl-pd70sneg24:~$ snap refresh --list Name Version Rev Size Publisher Notes firefox 135.0-2 5701 270MB mozilla✓ - thunderbird 128.6.1esr-3 634 221MB canonical✓ - user@machine:~$ sudo snap refresh error: cannot perform the following tasks: - Run post-refresh hook of "firefox" snap if present (run hook "post-refresh":

rm: missing operand Try 'rm --help' for more information. ln: failed to create symbolic link '/var/snap/firefox/common/snap-hunspell/et_EE.dic' -> : No such file or directory ln: failed to create symbolic link '/var/snap/firefox/common/snap-hunspell/et_EE.aff' -> : No such file or directory

Starting and ending state of /snap/firefox/: user@machine:~$ ls -tl /snap/firefox total 0 lrwxrwxrwx 1 root root 4 Feb 6 08:24 current -> 5437 drwxr-xr-x 7 root root 201 Dec 10 10:01 5437 drwxr-xr-x 7 root root 201 Nov 25 19:59 5361

Our friends at Google who own youtube keeping telling me I am using an adblocker, I turned off the badgher plus reverted to standard settings and they are still telling me I am using an adblocker. But I will not go back to google as my browser.

After the recent bunch of windows updates i started noticing youtube loading much slower and other websites acting strange. Just now i tried to look at a link https://steamusercontent-a.akamaihd.net/ugc/47948470127416586/912CDEE3AD8B94CF3122B7338E89E24C9B6EC29D/

I get "No video support and MIME type found". I have uninstall/reinstalled, checked codex, disabled addons and downloaded Microsoft windows media pack, then restarted the computer.

Nothing seems to work. But i had to reinstall Firefox again because all my tabs would crash after the last reinstall.

I tried to do the fix using userChrome.css but it just didn't work. Am I doing something wrong?

Also the fullscreen animation fix using the about:config settings doesn't work either.

Thanks in advance :3

For the past week now, every time I go to this link https://marketplace.secondlife.com/ , it is in another language. Usually Spanish or Portuguese and now and then French. I'm always having to translate. Even though my settings says English and i have no other options.

Firefox has stopped obeying target="_blank"

Started a month or so ago.

Take a look at Firefox target="_blank" problem for details.

There is not a topic in the dropdown list that remotely addresses this issue so I just selected Performance and Connectivity for the hell of it.