Backup Cookies and Cache File Question

[ejiwl]

Hello to the greatest browser community!
First question:
I need to back up some cookies or make them impossible to get deleted (probably write protected) when I clean the browser cache so that when I visit those web-sites again (let's say google) the settings are already configured. The content of the cache folders appear as a bunch of extension-less files, so I can't find the cookies I'm looking for, how is it possible to do what I'm trying to?

Second question:
In the cache folder I see very big files (named data_1, data_2, data_3 also extension-less) which don't get deleted when I clean the cache and I can't inspect the content, what are those files and why vivaldi cache files appear without extension and are impossible to open/inspect?

[Pesala]

@ejiwl On the Delete Browsing Data dialog you can clear the cache without deleting cookies.

[ejiwl]

@Pesala thanks, but I just need to keep the cookies of one web-site, so the solution I think would be first to identify those cookies then back them up or make them write protected or undeletable

[greybeard]

There are third party applications which will do what you want.
Be very careful, these are designed for Admins / Power Users and if used improperly can be dangerous to your system.
Also they will probably trigger your Anti-Virus as malware / spyware. You'll have to create a whitelisted folder for such applications.

[ejiwl]

is vivaldi (chromium) cache encrypted? It would just be very easy to find the specific cookies I need and save them

[ejiwl]

any help or explanation about the cache?

[Pathduck]

@ejiwl Hi, cookies are stored in the file Cookies in the profile folder, in SQLite database format. The values of cookies are stored as encrypted BLOB. If you want to do some manipulation of this data you best start reading
https://sqlite.org/cli.html

AFAIK there is no way to whitelist cookies from a specific site in a way so they won't get deleted when you do a full Delete Browsing Data.

I would instead use an extension like CookieAutoDelete to whitelist sites I want to keep cookies from, and it will auto-delete everything else when the tab is closed.
https://chrome.google.com/webstore/detail/cookie-autodelete/fhcgjolkccmbidfldomjliifgaodjagh/

CCleaner also supports a whitelist of sites to not delete cookies from when clearing browser data.
https://www.ccleaner.com/docs/ccleaner/ccleaner-settings/choosing-which-cookies-to-keep

[ejiwl]

amazing thank you very much!