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How to recover data from *memory* cache (not disk)?

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My 11 year old typed in a big blog entry on Wix for a school thing and then accidentally deleted it. He's one of those kids that really has to work to write much, so he's *really* discouraged and it's worth some effort on my part to recover. Wix has no recovery tools I can find, and there is nothing in the disk cache. However when I fired up about:cache I did find several potentially interesting files in the "memory" section. When clicking on them, I get a page with the title "Cache entry information", a bunch of header info etc, and then a big chunk of what looks like hex data with checksums or something e.g:

00000000: 1f 8b 08 00 00 00 00 00 00 03 ec bd db 92 1b 57 ...............W 00000010: 96 a6 f9 2a 50 5c 8c b2 7a 18 91 7e 84 bb 73 6c ...*P\..z..~..sl 00000020: ac 8c a2 a4 4c 96 e9 34 22 2b d3 ba 2b db 68 7e ....L..4"+..+.h~ etc...

To complicate matters further the machine he was on is an old unstable one, so to capture the data before it died again (and presumably wiped the memory cache), I went through the cache and saved all of the likely looking files.

Some of them are pretty big, so I am optimistic there is something in there at least, but I can't figure out how to access them. Naively it seems like there should be some way to get FF to interpret them as arriving from a server, rather than just displaying the data as text the way it does if I load the file. I've also tried editing out the decorative HTML from the cache file I saved and making a file that looks like a server response, using only the headers & pre-formatted text from the cache file, but no luck. Any advice?

thanks

My 11 year old typed in a big blog entry on Wix for a school thing and then accidentally deleted it. He's one of those kids that really has to work to write much, so he's *really* discouraged and it's worth some effort on my part to recover. Wix has no recovery tools I can find, and there is nothing in the disk cache. However when I fired up about:cache I did find several potentially interesting files in the "memory" section. When clicking on them, I get a page with the title "Cache entry information", a bunch of header info etc, and then a big chunk of what looks like hex data with checksums or something e.g: 00000000: 1f 8b 08 00 00 00 00 00 00 03 ec bd db 92 1b 57 ...............W 00000010: 96 a6 f9 2a 50 5c 8c b2 7a 18 91 7e 84 bb 73 6c ...*P\..z..~..sl 00000020: ac 8c a2 a4 4c 96 e9 34 22 2b d3 ba 2b db 68 7e ....L..4"+..+.h~ etc... To complicate matters further the machine he was on is an old unstable one, so to capture the data before it died again (and presumably wiped the memory cache), I went through the cache and saved all of the likely looking files. Some of them are pretty big, so I am optimistic there is something in there at least, but I can't figure out how to access them. Naively it seems like there should be some way to get FF to interpret them as arriving from a server, rather than just displaying the data as text the way it does if I load the file. I've also tried editing out the decorative HTML from the cache file I saved and making a file that looks like a server response, using only the headers & pre-formatted text from the cache file, but no luck. Any advice? thanks

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AFAIK that isn't possible. The site should if they are run correctly have a auto-save on their site for blogs entered. So at this point this isn't a firefox issue but a site issue and you need to contact them for support on that. One should take that to a computer shop to help on recovery for deleted data.

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Ja, unfortunately the site does not appear to have anything that would help: https://support.wix.com/en/article/request-restoring-a-deleted-post-in-the-new-wix-blog

So yes, theoretically they could probably try to recover deleted files off their HDD if they haven't been overwritten yet, but in practise I can't see them doing that.

All I've got to work from is several hundred kb of memory cache data (so big enough to contain a fair bit of text if that's what it is). I'm hoping that one of them is the HTML from when he loaded the blog post to look at it, that would contain the text we need (the explanation that got to me was that he had finished his post, published it, noticed some things he wanted to correct, and then tried to remove the published post and go back to editing the draft files. Unfortunately the draft files were also deleted by that action, so on the site everything is now gone).

How would you go about determining what those cache files do contain?

thanks