Please help me exit kiosk mode

I have a lot of Firefox windows and tabs open, and I really don't want to lose my session. I wanted to open a webpage in Firefox in fullscreen mode. But evidently there'… (read more)

I have a lot of Firefox windows and tabs open, and I really don't want to lose my session.

I wanted to open a webpage in Firefox in fullscreen mode. But evidently there's some kind of serious flaw in Firefox that makes it incapable of opening webpages in fullscreen mode. Everyone says the only workaround is to open the webpage in kiosk mode. So I tried it.

But now I have two big problems:

1. One of my Firefox windows, with all its tabs, is stuck in kiosk mode. (Even if I close the window and then restore it with Ctrl+Shift+T, it's still in kiosk mode.)

2. All new Firefox windows I open with Ctrl+N are also stuck in kiosk mode.

I don't know what to do, and I'd really appreciate any help. Thanks!

Asked by rewiytodfdg 1 week ago

Last reply by Mike Kaply 1 day ago

As a domain admin I can't manage FF ("Your browser is being managed by your organization.") - can't remove that

The recommended methods, changing to this in the registry : [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Mozilla\Firefox\Certificates] "ImportEnterpriseRoots"=dword:000000… (read more)

The recommended methods, changing to this in the registry :

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Mozilla\Firefox\Certificates] "ImportEnterpriseRoots"=dword:00000000

Reverts back to 00000001

Put this policies.json and did nothing: {

 "policies": {
   "Certificates": {
     "ImportEnterpriseRoots": false
   }
 }

} What am I missing or what's changed?

My specific need at the moment is to add another search engine option in about:preferences#search

Thanks.

Asked by Alex 3 weeks ago

Last reply by jscher2000 - Support Volunteer 4 days ago

Bookmarks are not linked in Firefox

Dear Team, When my Client device installs From Firefox 102.7.0 ESR to Firefox 128.7.0 from SCCM. (The case is First install the Version 102.7.0 then save the Bookmarks… (read more)

Dear Team,

When my Client device installs From Firefox 102.7.0 ESR to Firefox 128.7.0 from SCCM. (The case is First install the Version 102.7.0 then save the Bookmarks and then uninstall. Second Install the 128.7.0 then check the bookmarks)

user profile Bookmarks are not mapped in Firefox. When I check C:\Users\Tests\AppData\Roaming\Mozilla\Firefox\Profiles I can see the xxxx.defaultesr


I don't understand why the bookmarks are not linked in Firefox. Can you please help? I would be thankful to you if you could share me the .bat script

Thank you

Asked by Jose Jesuratnam 4 months ago

Last reply by Mike Kaply 6 days ago

Firefox ESR 128 --remote-debugging-port CLI option with BiDi

Until recently the Firefox docs described how to use the CDP-based Remote Agent at [this url](https://firefox-source-docs.mozilla.org/remote/cdp/Usage.html), now defunct.… (read more)

Until recently the Firefox docs described how to use the CDP-based Remote Agent at [this url](https://firefox-source-docs.mozilla.org/remote/cdp/Usage.html), now defunct. Here is the latest archive version I can find from the end of last year: https://web.archive.org/web/20241126214503/https://firefox-source-docs.mozilla.org/remote/cdp/Usage.html

One usage example looked like this:

% firefox --remote-debugging-port DevTools listening on ws://localhost:9222/devtools/browser/7b4e84a4-597f-4839-ac6d-c9e86d16fb83

I have tried the same but get no websocket address returned:- ``` % firefox-esr Mozilla Firefox 128.11.0esr ``` ``` % firefox-esr -h ... ... --remote-debugging-port [<port>] Start the Firefox Remote Agent,

                    which is a low-level remote debugging interface used for WebDriver
                    BiDi and CDP. Defaults to port 9222.

... ... ```

`% firefox-esr --remote-debugging-port` command exits with nothing returned

I have `remote.active-protocols` set to 3 in my Firefox prefs.

Please advise how I get the Remote Agent to return a websocket address for use with BiDi with FF 128. My OS is Debian-based Linux.

TIA

Asked by keymaster 1 month ago

Last reply by Henrik (work) 4 weeks ago

Issues with aus3.mozilla.org and aus4.mozilla.org

I am a DNS administator at my employers and notice that on my employers network that aus3.mozilla.org and aus4.mozilla.org seem to be returning NXDOMAIN both with our on … (read more)

I am a DNS administator at my employers and notice that on my employers network that aus3.mozilla.org and aus4.mozilla.org seem to be returning NXDOMAIN both with our on prem DNS and via the public dns providers when a browser attempts update it can fail.

Have other Australian users reported such behavior and are these hosts still valid


DIG


grudd@crayon:~$ dig @8.8.8.8 aus3.mozilla.org

<<>> DiG 9.18.30-0ubuntu0.20.04.2-Ubuntu <<>> @8.8.8.8 aus3.mozilla.org
(1 server found)
global options: +cmd
Got answer:
->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 40382
flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
OPT PSEUDOSECTION:
EDNS: version: 0, flags:; udp: 512
QUESTION SECTION:
aus3.mozilla.org. IN A
AUTHORITY SECTION:

mozilla.org. 2 IN SOA infoblox1.private.mdc1.mozilla.com. hostmaster.mozilla.com. 2024020614 180 180 1209600 60

Query time: 0 msec
SERVER: 8.8.8.8#53(8.8.8.8) (UDP)
WHEN: Mon Jun 02 10:04:52 AEST 2025
MSG SIZE rcvd: 126

grudd@crayon:~$ dig stun.services.mozilla.com

<<>> DiG 9.18.30-0ubuntu0.20.04.2-Ubuntu <<>> stun.services.mozilla.com
global options: +cmd
Got answer:
->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 56679
flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
OPT PSEUDOSECTION:
EDNS: version: 0, flags:; udp: 1280
QUESTION SECTION:
stun.services.mozilla.com. IN A
AUTHORITY SECTION:

services.mozilla.com. 836 IN SOA ns-679.awsdns-20.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400

Query time: 0 msec
SERVER: 10.67.10.62#53(10.67.10.62) (UDP)
WHEN: Mon Jun 02 10:13:11 AEST 2025
MSG SIZE rcvd: 138

grudd@crayon:~$ dig @8.8.8.8 stun.services.mozilla.com

<<>> DiG 9.18.30-0ubuntu0.20.04.2-Ubuntu <<>> @8.8.8.8 stun.services.mozilla.com
(1 server found)
global options: +cmd
Got answer:
->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 62337
flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
OPT PSEUDOSECTION:
EDNS: version: 0, flags:; udp: 512
QUESTION SECTION:
stun.services.mozilla.com. IN A
AUTHORITY SECTION:

services.mozilla.com. 127 IN SOA ns-679.awsdns-20.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400

Query time: 0 msec
SERVER: 8.8.8.8#53(8.8.8.8) (UDP)
WHEN: Mon Jun 02 10:13:19 AEST 2025
MSG SIZE rcvd: 135

grudd@crayon:~$ dig @8.8.8.8 aus4.mozilla.org

<<>> DiG 9.18.30-0ubuntu0.20.04.2-Ubuntu <<>> @8.8.8.8 aus4.mozilla.org
(1 server found)
global options: +cmd
Got answer:
->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 15261
flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
OPT PSEUDOSECTION:
EDNS: version: 0, flags:; udp: 512
QUESTION SECTION:
aus4.mozilla.org. IN A
AUTHORITY SECTION:

mozilla.org. 40 IN SOA infoblox1.private.mdc1.mozilla.com. hostmaster.mozilla.com. 2024020614 180 180 1209600 60

Query time: 4 msec
SERVER: 8.8.8.8#53(8.8.8.8) (UDP)
WHEN: Mon Jun 02 10:24:30 AEST 2025
MSG SIZE rcvd: 126

grudd@crayon:~$ dig @8.8.8.8 aus4.mozilla.org

<<>> DiG 9.18.30-0ubuntu0.20.04.2-Ubuntu <<>> @8.8.8.8 aus4.mozilla.org
(1 server found)
global options: +cmd
Got answer:
->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 26928
flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
OPT PSEUDOSECTION:
EDNS: version: 0, flags:; udp: 512
QUESTION SECTION:
aus4.mozilla.org. IN A
AUTHORITY SECTION:

mozilla.org. 35 IN SOA infoblox1.private.mdc1.mozilla.com. hostmaster.mozilla.com. 2024020614 180 180 1209600 60

Query time: 0 msec
SERVER: 8.8.8.8#53(8.8.8.8) (UDP)
WHEN: Mon Jun 02 10:24:32 AEST 2025
MSG SIZE rcvd: 126

grudd@crayon:~$ dig @8.8.8.8 aus5.mozilla.org

<<>> DiG 9.18.30-0ubuntu0.20.04.2-Ubuntu <<>> @8.8.8.8 aus5.mozilla.org
(1 server found)
global options: +cmd
Got answer:
->>HEADER<<- opcode: QUERY, status: NOERROR, id: 37023
flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1
OPT PSEUDOSECTION:
EDNS: version: 0, flags:; udp: 512
QUESTION SECTION:
aus5.mozilla.org. IN A
ANSWER SECTION:

aus5.mozilla.org. 48 IN CNAME balrog-aus5.r53-2.services.mozilla.com. balrog-aus5.r53-2.services.mozilla.com. 58 IN CNAME prod.balrog.prod.cloudops.mozgcp.net. prod.balrog.prod.cloudops.mozgcp.net. 984 IN A 35.244.181.201

Query time: 4 msec
SERVER: 8.8.8.8#53(8.8.8.8) (UDP)
WHEN: Mon Jun 02 10:24:43 AEST 2025
MSG SIZE rcvd: 163

grudd@crayon:~$ dig @8.8.8.8 aus5.mozilla.org SOA

<<>> DiG 9.18.30-0ubuntu0.20.04.2-Ubuntu <<>> @8.8.8.8 aus5.mozilla.org SOA
(1 server found)
global options: +cmd
Got answer:
->>HEADER<<- opcode: QUERY, status: NOERROR, id: 65395
flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 1, ADDITIONAL: 1
OPT PSEUDOSECTION:
EDNS: version: 0, flags:; udp: 512
QUESTION SECTION:
aus5.mozilla.org. IN SOA
ANSWER SECTION:

aus5.mozilla.org. 42 IN CNAME balrog-aus5.r53-2.services.mozilla.com. balrog-aus5.r53-2.services.mozilla.com. 52 IN CNAME prod.balrog.prod.cloudops.mozgcp.net.

AUTHORITY SECTION:

balrog.prod.cloudops.mozgcp.net. 300 IN SOA ns-cloud-d1.googledomains.com. cloud-dns-hostmaster.google.com. 1 21600 3600 259200 300

Query time: 108 msec
SERVER: 8.8.8.8#53(8.8.8.8) (UDP)
WHEN: Mon Jun 02 10:24:49 AEST 2025
MSG SIZE rcvd: 237

grudd@crayon:~$

Asked by gr4638au 1 month ago

Last reply by Mike Kaply 1 month ago

Firefox ESR Not Displaying 'Refresh Firefox' Option in Help > More Troubleshooting Information

I'm using Firefox ESR 128.10.1esr on Kali, and I'm encountering an issue where the 'Refresh Firefox' option is missing from the ☰ → Help → Troubleshooting more Informatio… (read more)

I'm using Firefox ESR 128.10.1esr on Kali, and I'm encountering an issue where the 'Refresh Firefox' option is missing from the ☰ → Help → Troubleshooting more Information. This is preventing me from restoring Firefox to its default settings. I've already tried the following:

   Restarting Firefox
   Clearing the startup cache
   Confirmed there are no extensions installed

None of these steps have fixed the issue. I need a way to reset Firefox ESR to factory defaults, but I can't find an option to do so. Attached is a screenshot of the Troubleshooting Information page.

Any assistance would be greatly appreciated!

Asked by jadi zadi 1 month ago

Last reply by Mike Kaply 1 month ago

April 29th update to firefox ESR has broken viewing streams on twitch.tv

I confirmed this problem on two separate computers(windows 7 and windows 11) and version 115.23.0 of Firefox ESR can not properly play streams on twitch.tv Audio will pl… (read more)

I confirmed this problem on two separate computers(windows 7 and windows 11) and version 115.23.0 of Firefox ESR can not properly play streams on twitch.tv

Audio will play, but the video does not load with only a black screen with question mark icon replacing video feed.

Asked by explode337 2 months ago

Last reply by Mike Kaply 1 month ago

Firefox crash with message "Gah. Your tab just crashed"

We recently update Firefox with version 138.0 and now getting the message "Gah. Your tab just crashed" when opening the browser. We attempted to update and install vers… (read more)

We recently update Firefox with version 138.0 and now getting the message "Gah. Your tab just crashed" when opening the browser.

We attempted to update and install version 138.0.1 only resulting with the same error. We also found and attempted the following all resulting with the same error: - change the about:config page for settings to false for both browser.tabs.remote.autostart and browser.tabs.remote.autostart.2

- clear browser cache.

- enable Temporary Mode in the Help menu. This appears to fix the problem but only for the current browser session. When a new Firefox window is opened, the error reappears.

What is needed to resolve this error or is there a way to permanently enable Temporary Mode or some similar setting? Thanks for all your help with this.

Asked by marcelo.alejandro 1 month ago

Last reply by Mike Kaply 1 month ago

Intune Joined Devices on Firefox

Hello, Our organization is attempting to implement a Conditional Access policy that restricts access to certain websites to Intune joined devices only. The error message… (read more)

Hello,

Our organization is attempting to implement a Conditional Access policy that restricts access to certain websites to Intune joined devices only. The error message mentions that I need to enable a setting from within Firefox called Windows SSO, mentioned here: https://support.mozilla.org/en-US/kb/windows-sso. This setting is already enabled and I am still getting an error.

Is there anything else that could be causing this?

Asked by tallen3 1 month ago

Last reply by nullsbrawlone 1 month ago

Firefox 128.0 ESR

Добрый день Есть ли возможность установить плагин .xpi в mozilla через cmd. AltLinux. Конечно я уже прочел статьи существующие. Не сработали рекомендации. Можно ли сдела… (read more)

Добрый день Есть ли возможность установить плагин .xpi в mozilla через cmd. AltLinux. Конечно я уже прочел статьи существующие. Не сработали рекомендации. Можно ли сделать вывод что Firefox 128.0 ESR не поддерживает установку плагинов через cmd? Если да, то можем ли мы сослаться на официальный ответ firefox ? Благодарю за рекомендации.

Asked by DeathNote.14 2 months ago

Last reply by Mike Kaply 1 month ago

How to override top-sites.json from omni.ja in ESR ?

I am going to deploy Firefox ESR in an environment where the default topsites provided by the top-sites.json included in omni.ja (namely Wikipedia, youtube and reddit) ar… (read more)

I am going to deploy Firefox ESR in an environment where the default topsites provided by the top-sites.json included in omni.ja (namely Wikipedia, youtube and reddit) are not desirable, and I want to provide my own. I cannot find a way to do so.

Setting the browser.newtabpage.activity-stream.default.sites preference through the policies.json file does not work (the pref gets loaded but it does not influence the actual default topsites, which is not surprising since the default value of this pref has nothing to do with the actual default topsites).

Note that I am not seeking to remove the topsites from the homepage entirely (as would be achieved through the FirefoxHome/TopSites policy), I want to change the default ones.

I tried creating my own top-sites.json in /lib/firefox-esr/browser/ where omni.ja resides, but to no avail.

Asked by ysalmon 2 months ago

Last reply by Mike Kaply 2 months ago

Problems with automatic import of HTML bookmarks

Hi, we use Firefox 128.9.0esr (64bit) on about 6000 workstations. We redirect the stored bookmarks on a personal network drive for each user. For that we use these settin… (read more)

Hi, we use Firefox 128.9.0esr (64bit) on about 6000 workstations. We redirect the stored bookmarks on a personal network drive for each user. For that we use these settings via Windows group policy:

browser.bookmarks.file = P:\Firefox\Bookmarks browser.bookmarks.autoExportHTML = true browser.places.importBookmarksHTML = true

For some time the automatic export/import with that settings above does not work any more. When I close Firefox on workstation A, the bookmarks seem to be exported correctly in that export-file (check the file via editor). But when I use another workstation B an start Firefox, the exported file does not import on startup. But this worked fine in the past.

I found out, that the switch "browser.places.importBookmarksHTML" is obviously automtically set to false when I have startet Firefox (checking with about:config). I dont know if it is correct.

Any suggestions? Maybe it's a new bug?

Thanks Malte

Asked by Malte 2 months ago

Last reply by Mike Kaply 2 months ago

Camera block settings managed by MDM is not working

I am trying to manage Firefox browser for our users with MDM. On doing so, I can't able to get expected output on blocking the camera access for certain websites with the… (read more)

I am trying to manage Firefox browser for our users with MDM. On doing so, I can't able to get expected output on blocking the camera access for certain websites with the following OMA-URI.

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Camera/Camera_Block

I can add websites in allow section and even lock the setting so that the users can't change. But facing issues with blocking camera access.

Is there any place where I can see the log if there are any error encountering by any chance? Any insights or suggestions would be greatly appreciated.

Thanks in advance!

Asked by Laurel 2 months ago

Last reply by Mike Kaply 2 months ago

Disable Optional Permissions such as 'Access your data for all websites'

Hello, For enterprise solutions, for our browser extension can we disable the switch button where user can turn-off the "Access your data for all websites"? This can be… (read more)

Hello,

For enterprise solutions, for our browser extension can we disable the switch button where user can turn-off the "Access your data for all websites"?

This can be informed to the end user and also approved by the IT admins.

But the option to disable at runtime on the fly needs to be disabled.

Asked by GB 3 months ago

Last reply by Mike Kaply 3 months ago

firefox update

Hi, I keep getting a message that I should update to a newer version of Firefox on Ubuntu. The problem is: I click on the install for 64 bit button, A ...tar.xz file down… (read more)

Hi, I keep getting a message that I should update to a newer version of Firefox on Ubuntu. The problem is: I click on the install for 64 bit button, A ...tar.xz file downloads to my desktop, and the process ends completely. How to proceed?

Thanks, Ildikó

Asked by Ildikó Sexty 3 months ago

Last reply by James (On Leave) 3 months ago

Installing Firefox ESR in Enterprise Enviroments

Hello everyone, We have been using Mozilla Firefox ESR (32-bit) in the organization for several years. For installation on our clients, we use "Matrix42 Empirum" as the … (read more)

Hello everyone,

We have been using Mozilla Firefox ESR (32-bit) in the organization for several years. For installation on our clients, we use "Matrix42 Empirum" as the software distribution tool. All it does is install the MSI of Firefox.

However, for quite some time now (almost 2 years), we have been facing an issue where some installations are marked as successful (Error code 0), but once the MSI installer is automatically closed, files like "firefox.exe" disappear from the installation directory – despite the installation being marked as successful.

The problem doesn’t always occur, but a repair attempt usually resolves the issue.

In addition to Empirum, we also use Defender for Endpoint, but we couldn’t find any clues there.

Is this problem known, or are we the only ones experiencing it?

Asked by WilliCat 3 months ago

Last reply by Mike Kaply 3 months ago

Firefox Updates when the user never logs in to PC

When a user logs onto the PC, FF creates the Task scheduler folder but not the task inside. This only get created once the user opens FF for the first time. So as an ad… (read more)

When a user logs onto the PC, FF creates the Task scheduler folder but not the task inside. This only get created once the user opens FF for the first time.

So as an admin how would I manage the updates for FF when the user never opens Firefox?

Asked by harry.coetzee 3 months ago

Last reply by Mike Kaply 3 months ago