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**Snowhog** · Sep 04, 2022, 06:51 AM

How do I stop Firefox from sending data?
To disable the sharing of this data:

In the Menu bar at the top of the screen, click Firefox and select Preferences. Click the menu button and select Settings.
Select the Privacy & Security panel.
Uncheck the boxes under the section, Firefox Data Collection and Use.

**claydoh** · Sep 04, 2022, 09:45 AM

Have you actually investigated the physical cache files in your mozilla profile, and research what they may contain?

Start with Occam's Razor. First thing to consider is that the cached item is an image or resource someone has linked to that is stored or hosted on a page on UMass Amherst's web servers, and created or shared using MS Sharepoint. many large organizations and universities use this. Could be faculty or student created web pages, images, and documents. The address you are seeing is a directory, perhaps? Which logically would require a login.

Take a look at the actual cache files in your profile, you might see which page linked to something on the UMass servers.

Some times it is easy.
I see a folder for patreon in my cache (created 27 August), and I know I have not visited that website in recent memory.
However, in this case the full name of the folder makers it a bit obvious what sourced it, once I see the full string.
https+++www.patreon.com^partitionKey=%28https%2Cki tguru.net%29

In your case, you might look into the specific files in a text editor and peek at the file contents and see if they give better info, or maybe if there are are other directories similar to my example that might provide clues.

**claydoh** · Sep 04, 2022, 05:38 PM

Brave and Chrome, et al use different methods of caching data, definitely using different names,

These folders pertain to the function called "Service Workers" which is
a script that executes in the background allowing web pages to provide
features like push notifications, background sync, and more.

What you're seeing is a cache folder for that data. The morgue folders
might be data from the browser cache that is still needed for the
service worker.

All of that data is considered part "Offline Website Data". To clear
that data, use the Clear History tool, and make sure "Offline Website
data" is checkmarked.

More info about service workers:
https://developer.mozilla.org/en-US/...I/Using_Servic e_Workers
https://developers.google.com/web/fu...ervice-workers

Absolutely clears nothing up at all

A neat utility: about:cache in the url bar
There are GUI cache views as well, if the rabbit holes are calling..........must.....re....sisttt.......

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