Storage and Morgue

[Millwood]

My storage folder is 1.8 Gigs large. Most of it appears to be files
with morgue in their names. What's going on? What are morgue files?

It looks like cached pages since its arranged by web site - but clearing
the cache has no significant effect on the content.

[Andrei Z.]

There are mostly closed bugs
https://duckduckgo.com/?q=morgue+site%3Abugzilla.mozilla.org&ia=web

How old are these files?

[Millwood]

some are quite current - like today.
by deleting sites that hadn't been recently used I got it down from 1.8
gig to only 0.8 gig :-)

I can certainly afford the space so this is mostly curiosity.

[Chris Ilias]

Hi Millwood,
I did some research and asked around, so here's my attempt at explaining
it. :)

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/docs/Web/API/Service_Worker_API/Using_Service_Workers
https://developers.google.com/web/fundamentals/primers/service-workers


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