Immediately after update from Firefox 67.0 to 67.0.1 DownloadHelper stopped recognizing YouTube videos.
Worked fine, but now typically shows , e.g., "no media to process in current tab." Or it seems to download but then gives error message "MP2T No data received." It had just worked fine with Firefox 67.0. DownloadHelper v. 7.3.6. Looks fine in the Add-ons/"manage your extensions" tab.
Additional System Details
- User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:67.0) Gecko/20100101 Firefox/67.0
You should contact its support.