User blog comment:Dragonjet/KC3改/@comment-27145607-20160410131635/@comment-1820055-20160411114222

Are you using webstore build? One of the main reasons the extension won't auto-update, is because of the usage of dev build.

Also, updates don't reinstall the extension, but it might auto-close opened pages such as DMM frame and API links pages. but regardless an update will not wipe your data