Comment 46 for bug 464552

The list of subscribers (which has the Unsubscribe button on the top) is after the Duplicates list. Since this bug has an enormous amount of duplicates, this is a bit down the page.

Note that if you have real problems with suspend/resume (not only the timeout warning) your report is a false duplicate so you should un-duplicate it instead of unsubscribing. Otherwise your issue will be ignored since the timeout warning bug has been fixed.