How to remove item from preferences>Files and App>Applications
I've had a security breach where a Discord user got access to an email account. I'm going through all computers to make sure there is no malware that might be related to discord. I found one item in my download preferences that says "discord' but everything I've tried won't allow me to erase it. Any information on what this might be? and how/if I should erase it? (In fact, I don't know what any of the items are in my content types)
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That might be for links that start with discord: (similar to how Firefox keeps a record of your preference for opening links starting with mailto or zoommtg:). Unfortunately, there is no convenient way to remove that entry, you would need to edit or delete the handlers.json file which stores the Applications list. If you need to do that, the file is in the current profile folder. See: Profiles - Where Firefox stores your bookmarks, passwords and other user data.
Having a registered handler for legitimate software/service should not be a security concern, especially when set to "Always ask".
zeroknight said
Having a registered handler for legitimate software/service should not be a security concern, especially when set to "Always ask".
Are you saying I'm less secure the set it as "Always Ask"? I thought that meant always ask ME before downloading anything. I changed everything to "always ask." Is that a mistake?
"Always Ask" is safer than the alternative of auto-opening. In the case of a protocol (if it is a protocol), "Always Ask" causes Firefox to display a dialog asking what application you want to use to open the link, which is what would happen anyway when Firefox first encounters a novel protocol.