Edit C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\2de66b35.default\handlers.json
{"defaultHandlersVersion":{"es-ES":4},"mimeTypes":{"application/pdf":{"action":3,"extensions":["pdf"]},"application/x-zip-compressed":{"action":0,"ask":true,"extensions":["zip"]},"text/xml":{"action":3,"extensions":["xml"]},"image/svg+xml":{"action":3,"extensions":["svg"]},"image/webp":{"action":3,"extensions":["webp"]}},"schemes":{"ircs":{"action":2,"ask":true,"handlers":[null,{"name":"Mibbit","uriTemplate":"https://www.mibbit.com/?url=%s"}]},"mailto":{"action":2,"ask":true,"handlers":[null,{"name":"Yahoo! Mail","uriTemplate":"https://compose.mail.yahoo.com/?To=%s"},{"name":"Gmail","uriTemplate":"https://mail.google.com/mail/?extsrc=mailto&url=%s"}]},"irc":{"action":2,"ask":true,"handlers":[null,{"name":"Mibbit","uriTemplate":"https://www.mibbit.com/?url=%s"}]}}}
Ms-Dos/Windows
Unix
Write backup
jsp File Browser version 1.2 by
www.vonloesch.de