Firefox Community Forum

I run Linux Debian 12 (bookworm), and there seems to be no way to disable Firefox from automatically starting up after system boot. I've searched through settings, read countless articles on the internet, looked at system auto-startup applications, but wasn't able to find anything that worked. I even looked in about:config, but couldn't find anything. Firefox isn't automatically started by my system and there is no parameter that disables it. I also didn't click through any choices about autostart when I first opened Firefox.

Good Afternoon

I have exhausted all possible restrictions for Fire Fox to sync with McAfee I have gone to Windows Firewall the inbound rule is blocked if rules don't apply Fire Fox and McAfee are both enabled on my personal computer as private The McAfee keeps showing a setup window for both Googles and Fire Fox At one time all 3 of my browsers were setup and then it drops as a change in default browser is selected

Regards Ron

Can I please have some help to remove that my browser "is being managed by your organisation" when it is not and only at home for personal use. I did not turn on any settings, please help remove this permanently.

Thank you

New update to Firefox as part of a Windows update on 4/10/25 described a new firefox layout. I went to explore this new capability and firefox had a banner across the top saying my PC was managed by an enterprise. I built this PC from scratch.... How do I turn this setting off?

Well I've been chasing this problem for about a year. Things I have done. 1) reinstalled firefox 2)reinstalled windows 3)attempt to remove the ImportEnterpriseRoots flag via Regedit. (Mozilla does not even appear in in the policies folder) I Suspect this has something to do with having logged into my firefox account on a shared work computer, and the sysadmins subsequently removing the ability to use personal firefox accounts on these computers, to the point of not even being able to logout of the account.

It just keeps coming back. I only have MS Defender for security so I don't think its security software causing it, and I do not believe a virus/rootkit would survive several formats and reinstalls.

Hello.

Everytime I open a new Firefox window, I get this warning from my antivirus:

Suspicious connection blocked 8 minutes ago

Feature: Online Threat Prevention

firefox.exe attempted to establish a connection relying on an unmatching security certificate to sync.contextualadv.com. We blocked the connection to keep your data safe since the used certificate was issued for a different web address than the targeted one.

Usually, when I see this happen, the company fixes the issue within a day or two, but this has been occurring since at least 4/9/2025. This warning occurs regardless of whether my browser is logged into it's Mozilla account or not.

Regards, Jason

I am getting the question whether firefox has permission to open the page? Does it have, aand how should I handle tht when i want to open an online page?'

I'm on Mac desktop, Sequoia 15.3.2. I am trying to access a site. I get a message, "can't access site, check Firefox firewall settings." Please help me solve this in simple terms. Thank you.

I have a MacBook Pro running Sequoia 15.3.2. When I remove all data from Firefox (137.0 (aarch64)) in Manage Data under Privacy & Security there is one site datum that always returns. It is 64k of data, 0 cookies, that persists after every clean up. This has been going on for quite a while.

I've searched Finder for any reference to the company name and cannot find any reference.

It isn't a lot of data, but I'd prefer to not have something lingering around.

Does anyone have a suggestion for how to delete this once and for all?

I'm getting alot of messages several times a day for a week now. Just about all of them are with the Firefox logo but I'm pretty sure it's not Firefox.

Things like phone is corrupt.  Delete certain files.  18 viruses found.  I have some screen shot of them. How can I make this stop?
 It's constant and annoying.

For the last couple of days, when I am using Firefox I am bombarded with security alerts ranging from "System Alert" to "Viruses found (3)" to "Trojan Detected". The icons shown are Windows, McAfee, Google, and others. Mozilla Firefox with its logo are in small print, top left corner. I am usually asked to click; I do not click! I scanned my computer (Webroot) and the scan comes back clean each time. The last line in all of these is "via d04e3a0hubcc73bbgvsg.chainintegration.co.in" How do I get rid of these? Thanks for any help. Susan

I have attempted to sign in to MyHealtheVet.gov 3 or 4 times over as many hours. Every instance has encountered the same message "Secure Connection Failed. This is the Verterans Administration website and find it hard to believe their website is not secure. I'm not a computer geek, far from it, hence utilizing this method of contact. I have been notified by email that I have a secure messaging message on the VA site that I am unable to access/ Thanks in advance,

I use the email server fastmail.fm inside the Firefox browser on a 2023 Macbook pro. In the main everyday pane (the list of emails) there is a right-hand scroll bar. Frequently that scroll bar is MUCH too long, so that I cannot scroll all the way to the bottom of the list of emails. Both Apple and fastmail.fm are pretty sure they are not responsible. When the scroll bar is too long, I know a work-around, but I would like the problem not to happen.

Firefox keeps asking to update. When I click yes, it updates but then a User Account Control window pops up, saying that the update was blocked for security reasons.

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특정 사이트에서 "프록시 서버가 연결을 거부함" 문구가 뜨더군요 실행 안하고 할시에 보안연결실패로 접속이 됩니다.

구글의 크롬도 VPN 사용함 사용안함 둘다 적용하여도 사이트 접속이 됩니다

프록시 서버가 연결을 거부함로 사이트 접속이 안되는데 방법이 있을지요.