User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:49.0) Gecko/20100101 Firefox/49.0 Build ID: 20160922113459 Steps to reproduce: I'm currently working on a webextension-addon that removes downloads from the download-history. For that, I tried using chrome.downloads.erase() (https://developer.mozilla.org/en-US/Add-ons/WebExtensions/API/downloads/erase), which "[...] erases matching DownloadItems from the browser's download history, without deleting the downloaded files from disk." Actual results: The download entry that shows up when clicking the download-arrow got removed. However, about:downloads still shows all downloads. This can be reproduced with the 'latest-download-example (https://github.com/mdn/webextensions-examples/tree/master/latest-download). Also, downloads from earlier sessions can't be accessed by chrome.downloads.erase() or chrome.downloads.search(). Expected results: The entry in about:downloads should have been removed as well. chrome.downloads.* should be able to access downloads from earlier sessions as well.

Comment on attachment 8908778 [details] don't dynamically switch to/from fast-path gUM audio wrong bug, sorry