Firefox Community Forum

Hello, i am wondering about the blocking of extensions on "Quarantined Domains".

Is there a list of them available to explore? Who maintains this list? Can some fishy website admin add his domain to it to block some 3rd party security addons? How can i whitelist a fishy extension on only 1 blocked site without losing the protection?

The faq articles are not really helpful for this.

Hi there,

I’m using the Firefox Multi-Account Containers extension and would like to remove a site that’s been set to "Always open in [X] container." However, I don’t see a “Manage Site List” option anywhere in the container settings as seen here: https://support.mozilla.org/en-US/kb/containers

Here’s what I’ve tried so far:

   I’ve clicked the Containers icon and selected the gear ⚙️ to edit a container.

   I enabled privacy.userContext.siteAssignments.enabled in about:config and set it to true.

   I restarted Firefox (with session restore on), but still no option appears to view or manage assigned sites.

I’m on Firefox Desktop (Mac), and I’ve confirmed that I’m using the official Multi-Account Containers extension.

Is this a bug, a UI change, or something I’m missing? I’d really prefer not to manually edit the containers.json file if there’s a built-in way to manage these assignments.

Thanks so much for any guidance!

I'm on WinXP and Win7; FF is there respectively on ESR 52.6.0, and 56.0.2.

• • Pls refrain from lecturing me on updating etc. I need it to be this way for umpteen reasons. Thanks for understanding.**

First, all of a sudden all my legacy add-ons were disabled. Most of them ensure FF looks like it did ages ago, which is what I'm used to, and need, to function properly myself. They overall are no longer maintained or downloadable, hence the need to stay on lower browser versions as well.

Managed to fix that.

Then, last Fri, my webmail provider missed updating their security certificate. They seemingly later do, but I am left unable to access their website from FF on both machines, and Chrome on the XP. Disaster.

The error messages I get are, in FF:

[www.netaddress.com] uses an invalid security certificate.

The certificate is not trusted because the issuer certificate is unknown. The server might not be sending the appropriate intermediate certificates. An additional root certificate may need to be imported.

Error code: <a id="errorCode" title="SEC\\\\\\\\\\\\\\\_ERROR\\\\\\\\\\\\\\\_UNKNOWN\\\\\\\\\\\\\\\_ISSUER">SEC\_ERROR\_UNKNOWN\_ISSUER</a>

and in Chrome:

classic.netaddress.com normally uses encryption to protect your information. When Google Chrome tried to connect to classic.netaddress.com this time, the website sent back unusual and incorrect credentials. This may happen when an attacker is trying to pretend to be classic.netaddress.com, or a Wi-Fi sign-in screen has interrupted the connection. Your information is still secure because Google Chrome stopped the connection before any data was exchanged.

You cannot visit [classic.netaddress.com] right now because the website uses HSTS. Network errors and attacks are usually temporary, so this page will probably work later.

When running a SSL server test on their certificate it turned back: Chain issues Incorrect order, Contains anchor

No idea if that's relevant.

I tried just abt everything I was handed, could think of, or googled. Adding an exception included. Nothing works. Logically, the error should be on their end (w/ their old certificate, it all worked fine, now it doesn't), but somehow I keep being directed to that your root certificate having expired is the culprit.

Earlier today, I took the plunge and updated FF to 72.0.2 on the Win7 machine. (My webmail doesn't have full functionality on Chrome, so I was still very hampered in that regard there.) Now I can access the webmail -- but all my add-ons AGAIN are disabled. And what I did before to make the work does now NOT work anymore.

Can someone pls take me out of my misery? My whole existence is falling apart. I am already on 75 % (invisible) disability. Nothing works, least of all I. I am days behind on an already massively overburdened schedule. Not everyone can handle constant updates and their user interface being changed all the time. Some ppl are dependent on things looking and acting the exact same.

I'd like my add-ons back functional on the Win7 machine, and my webmail back -- INCLUDING the add-ons remaining functional, on the WinXP. Thank you.

The True Key extension from McAfee cannot be installed on Firefox. I have the latest updated version of Firefox 133.0.1 64 bit on my desktop Dell computer running Windows 11 Pro. When I try to install the True Key extension, a message pops up advising me that the extension cannot be installed due to a Firefox policy violation. I have reported the issue to McAfee for their action. Photo of the pop up message is attached.

I just approved an upgrade to Firefox that mentioned something about a new way of dealing with extensions. The first thing I noticed was my 1Password add-on in the toobar disappeared. I took the steps recommended by 1Password to add it back, and I can get a 1Password icon to appear on the toolbar, but it is non-functional. I confirmed 1Password is still functional with an icon in the toolbars of my other browsers. What gives?

I SUBSCRIBE TO TOTAL AD BLOCK BUT I ONLY USE FIREFOX AND DO NOT SEE HOW TO DOWNLOAD THE APP.

PLEASE ADVISE THANK YOU DAVID VOSBEIN [edited phone# from community forum]

I recently discovered a problem with an addon I wanted to report. The product page only has an email support link, which opens up MIcrosoft Mail. I prefer not to use it.

Is there any other way to get the developers email address?

Also, this link does not work

The Firefox Translations add-on has been discontinued and no longer works. As a foreign language learner, I found it very useful to open the Firefox Translations popup, enter some text, and have that text translated locally. Is there an alternative that has the same functionality?

Good afternoon,

I am trying to install UrbanVPN free on my firefox browser but it tells me that I can't have the extension.

Can you please help.

Kind regards.

Greg.

With Firefox's latest update...

1. Javascript no longer works on pages it absolutely must work. The webpage for my security cameras not longer allow me to operate the cameras. When I click pan/tilt/zoom button all I get is a little message that says "Jacascript" at the bottom right corner where there should be a url. I've never actually paid attention on the security cams page but the url is there on other websites. I have to have this functionality. How do I re-enable Javascript for at least this page?

2. Deactivated extensions are not actually deactivated. To trouble shoot the first problem I disabled NoScript and ADblock Plus to see if they were interfering. I closed and reopened Firefox, and even restarted my PC. Firefox shows the extension to be disabled but they are in fact still active and working. Something is extremely broken in Firefox's extension manager. Is there anyway to actually disable these extensions without removing them?

Thanks

Audio Equalizer and Amplifier(https://addons.mozilla.org/ru/firefox/addon/audio-equalizer-and-amplifier/) extension on Yandex Music(https://music.yandex.ru/) doesn't work, which was noticed only in Firefox. In other browsers, it worked correctly and without any problems, I don't understand what the problem is. PC rebooted, browser restarted, the extension uninstalled and installed again. How can this be fixed? The extension worked correctly in Chrome and Edge.

Good morning,

Youtube has blocked my access because Firefox blocks the ads. This happens only on Firefox not on other browsers. I have the ads blocker disabled in the settings (see picture attached). Could you please tell me how to get this resolved. Regards.

Sites tell me they won't show the page unless I disable AdBlock. I had it many years ago, but uninstalled it years ago. It does not show up in my extensions list. So, what do I do? Thanks, Bob K

Hello!

I would like to know if Firefox has any settings to disable the POP-UPs that inform that "the password is being entered via insecure means (http)" and/or alarms for self-signed certificates on local networks? I work accessing the configuration pages of equipment (routers, switches, firewalls, APs, etc...) and these messages are very annoying. They disrupt the workflow and are unpleasant.

Is there any extension that makes a list of security exceptions (for example, everything on the 192.168.0.0/16, 172.16.0.0/12, 10.0.0.0/8 network)? It would be interesting if Firefox itself had this exception option.

PS.: Translated by Google.

Hey!

Anyone has any ideas why the extensions does not work properly anymore? Or is in similar situation?

My browser has been updated, as well mentioned extensions (its only 4 of them really). They worked fine for years and now suddenly - when I click on them - there is no response! I refreshed and re-installed the browser as well. Restarting does not help either.

I have installed Ublock Origin.

What I need help with is pinning the extension icon to the icon toolbar. This is important with Ublock Origin because it lets you quickly tell the extension to stop blocking the current domain.

Thank you!