Firefox Community Forum

What is this window called? When this window started popping up a couple of months ago, I noticed a couple of odd things happening on a website I go to. It would not let me pay them. It would look like it was going to then a white screen would pop up ans say" if you see this window then you ...........". I then have to pay on the phone or chrome. I have whitelisted the site but still does it.

For first time received email from breach-alerts@mozilla.com. Title is: Your monthly Mozilla Monitor report. Is this a scam? Other people have asked this question and Mozilla Firefox company has not made any attempt to answer these serious questions. If I do not hear back from Mozilla Firefox within a week I might remove Mozilla Firefox and use another company.

I have a HUGE problem with Firefox memory usage. Some open instances of firefox are taking anywhere from 600mb to 2.8gb of memory. Since firefox opens MANY instances even with only ONE active window, this very quickly uses all available memory (4gb) causing a full laptop crash.

More concerning is that CLOSING the worst instance of memory usage STILL leaves the single open page/tab open, so what exactly was the memory eating instance actually doing ???

I have included a screengrab of the many remaining instances of firefox in windows task manager AFTER closing the main culprit.

I have also included a screengrab of all the adblockers I use which I believed would limit unnecessary memory usage, but does not seem to be effective.

Many Thanks

Malwarebytes keeps blocking Mozilla files that seem to originate from it's folder in my laptop as riskware. Is this something I should make exceptions for? Or is it riskware. I'm running Win 11

Hi there, in my settings in firefox: there is a website that refuses to go away from the "Manage Data" section of the "Cookies and Site Data" section of my Firefox settings. I will select to remove all of the cookies ever, and even when I refresh the settings page, or close and restart the App, or turn my computer off and on again, it is still there. Strange! I would like assistance with this.

of note, I've checked w/ third party extensions that manage cookies, and that website doesn't show up when I manage cookies via said extension.

I have MacOS Big Sur, 11.7.10. I have the latest version of Firefox.

Thank you!

i just want to know who is the company owned buy? Is this SUMO group chinese? why wont anyone just tell me yes or no? if it is im not using ur platform and more as the chinese have decieved and betrayed us in the past spying on us with tvs phones white goods they are the worst privacy spies in the world they have the most amount of cctv in the world with the UK second on that list but china have cctv world wide with there fones cameras microphones commos dnt let us live there in there dictator shit country why are they allowed to flood there rubbish on us then claim to care about our privacy. decive us while pointing the finger at the us and the money man powers to be in the world and yet they are stealing all our shit and selling it to the highest bidder but not before just copying plans and steeling secrets dnt the dumb red gooks now that spies get shoot and the cold war is ended and well trump will blow them up once he gets rid of the gueedos back south of the rio grande?

How would one purge their cookies, search history, tab data while resetting/randomising identifiable information (for example if Firefox were to give each user a serial number or unique tag which it hands to webpages), all without resetting a users a user's browser settings, about:config & browser extensions downloaded (and extension settings). I am using Debian GNU/Linux, so bear in mind that I will be using the most stable version of Firefox on the Debian repos, not the newest version. I do not have a command line phobia, I am willing to do a lot of initial setup & run a specific command every time I launch the browser, even if said command is long. My current system involves rm -rfing the profile on a browser, but this is not optimal because it removes settings & extensions.

Thank you verry much for your assistance, I know this is a large undertaking and it a little overboard on the privacy and security front.

The only reason I have been using firefox all this time because it does not use ai features and has more trustworthy policies for user data. Given the recent ceo change and his opinions about ai features if it is true and ai is added I will stop using this browser and I know a lot of people will also do it.

After watching this video https://www.youtube.com/watch?v=mAfY_bNJTBI i went to https://www.cloudflare.com/ssl/encrypted-sni/ and did the test. Result is 3/4. (See screenshot below) Secure DNS, check DNSSEC, check TLS 1.3 check Enrypted SNI, fail In Firefox i tried doing exactly what the person did in the video but i dont have the settings he is showing in about:config Why is that? (Below you can see the screenshot, those settings are missing from about:config)

So my question reamins simple, how can i enable Enrypted SNI in Firefox?

Lately I've had to reload/refresh pages more frequently because of download issues. In order to the in FF I need to press the F5 key. To do the same thing in either Edge or Chrome all I need to do is right click and a little popup screen shows me the reload/refresh right there. Much more convenient to use. FF should use a similar technique.

I just clicked on a banner to provide info

https://mzl.la/contribsurvey-2026 I didn't read the URL as I thought Mozilla would use a third party

Then when I finished the questionnaire, having provide my email address I saw another third party domain was in the chain.

https://survey.alchemer.com/s3/8925524/Mozilla-Contributor-Survey-2026

So I am unhappy that two 'strange' organisations have some of my personal details.

No fault of anyone, but me, I just got carried away in the security I felt using Mozilla

(

Currently I must sign on to Frontline Education to see if there are any new substitute teaching job offers available 24/7. I would like to receive audible notifications on my Macbook Pro or Apple ipad or Apple iphone to alert me to a new job offer so that I can then go to my device and look at the job offer. Thank you. John Marshall

Hi there,

I'll preface this by saying that I use a Primary Password (formerly Master Password) to protect my information on my computer.

Today I was going to pay a bill and noticed I couldn't autofill my payment methods. So, I went to my settings to get my payment information to copy paste it. I found out that when I go to look at my payment methods, even with a primary password, I can just double click on my saved CC information and it opens up showing everything. This contrasts with saved passwords where if I were to go look at one of my passwords, I have to confirm my password again before I can look at it. In my opinion, this is a security risk and it's quite odd that it is just readily available like that. There really should be another step to confirm your password before autofilling/checking it in settings. I see there is a 'device sign in' option in settings, but that's not really what I had in mind.

I'd love to hear from you if there is a way to add this protection or if there is technical reasoning behind this. Thank you,

We use a privacy technology vendor named OneTrust to power much of our privacy infrastructure.

This morning, two websites reported Firefox users are encountering site functionality problems when trying to exercise their privacy rights, such as opting out of sharing data and targeted advertising. My team investigated and was able to reproduce the reported bug.

We discovered the cause of the bug is that Firefox's Privacy Enhanced Mode is by default blocking two domains from our privacy vendor OneTrust which are critical to the functioning of our CMP (Consent Management Platform): - cookielaw.org - onetrust.com

These two domains are used solely for the essential services needed to run our privacy software. They're not used for marketing, sales, or advertising. Blocking them not only causes site functionality issues it keeps our users from being able to exercise their privacy rights.

I've attached two screenshots here showing the network calls and domains.

Can Mozilla please quickly review this bug and remove these two domains from the blocklist powering Privacy Enhanced Mode?

My firefox browser froze and i accidentally sent the crash report. Is there any way to request it to be removed i cant find any form or email to ask for deletion.

Thanks in advance for all the answers!