Firefox Community Forum

Back in November (2024) I began noticing an absorbent number of cookies in “Manage Cookies and Site Data” (MCSD). Considering I delete cookies with fair regularity daily, this is unusual. The amount that I am seeing now, is around 190 advertising/Tracking cookies even when I only visit one or two sites. If I remove them and recycle the page and return to MCSD they are all back in storage in only those few seconds. This process can go on forever. This occurs even when I disconnect from the internet. How is this possible, where are these companies storing this stuff on my computer and how do I remove them and/or stop them from self populating? I have a Dell 64 something, running windows 10 I have Ad Blocker and Privacy Badger, along with a few others that are not security based. See Attachments

Thanks

How do I prevent MSN from opening Firefox? I am not interested in just blocking the site or a page, I want to block Microsoft from opening software that doesn't even belong to them.

Why is it when I want to go to a different website, such as youtube.com or google.com, the bar will autofill because I've been to those websites multiple times. But after going to spotify.com numerous times, the autofill never shows up and I have to manually type in the whole "spotify.com" because the web search bar thinks I've never been there before. Why is that and can I fix it?

I am locked out of my desktop Firefox because it doesn't recognize my Primary Password that I use on my laptop and my iPhone. The laptop and iPhone Firefox opens but not my desktop which shows I am signed in but it also states I changed my password which would explain why my primary password doesn't work. What to do?

I often save web pages to file on my local computer, but they always default to ".htm". The drop down selector shows (*.htm; *.html) I always opt for ".html" but they always default to ".htm".

How can I make ".html" the default filename extension for all web pages saved to file.

Firefox 134.0.2

Hi!

I was shocked when I recently visited a website of a company that offers IDEs. I've downloaded one of the IDEs a couple of weeks ago and now that I've came back to the website looking for plugins, the website still "knew" which version of the IDE I had downloaded because it gave me warnings about plugins not compatible with my IDE version. Now: My privacy settings in Firefox are "strict", the option "Delete cookies and site data when Firefox is closed" is checked and I've closed Firefox several times in the meantime. Still, the website has information about my identity.

I would have expected that with these settings something like what I've described wouldn't happen. I must say, I'm quite disappointed. Is there anything else that I can do within Firefox to enhance my privacy?

Plugins that I've installed: CanvasBlocker Cookie Autodelete Decentraleyes Forget Me Not NoScript

Hello! I am developing a web server, from which users can download large files. These files take a few seconds to generate, and cannot be generated ahead-of-time; only when a user requests them. The server therefore responds to such requests by first sending the HTTP response headers (without "Content-Length"), which can be written immediately, then generating the file, and sending the generated file as the response body.

In Chromium, this leads to the "Save As..." dialog appearing instantly, so the file can be generated & downloaded in the background while the user picks a location.

In Firefox (v132, linux x64), the "Save As..." dialog waits for the file to be generated before appearing, which is not user-friendly. During deeper testing, I discovered that Firefox appears to wait for my server to send at least 1 byte of data from the file (in the response body, after sending the HTTP response headers), before the "Save As..." dialog appears.

I have searched the Firefox settings and documentation but did not find anything that would explain this behavior. Is this a bug?

Hello,

We are running Roaming Profiles from our Active Directory architecture. It seems that a lot of files happen to have too long path&filename for example :

\\Serverinfo\Username\AppData\Roaming\Mozilla\Firefox\Profiles\FirefoxUserProfile\storage\default\moz-extension+++f9efba58-d1ae-40d1-993c-f56654dc34c0^userContextId=4294967295\idb\{d1ae6e36-40f7-4f62-88b9...

Do you have any idea to configure Mozilla so we keep it able to handle these filename length ?

We cant use wildcard in exclusions so we cant exclude whats in a subfolder of each profile. It's not supported by ActiveDirectory GPO.

Hope it was understandable please let me know if you need further details.

Regards, Yannick GANTOU