Comment 1 for bug 1313971

Not sure what issue is actually reported for Inkscape here (is user expectation that Inkscape somehow forces the browser to move its window with the just opened tab into the current workspace and raise it to the top, or for Inkscape to suppress/ignore any warning returned by applications launched via the extension system (e.g. for the items in the help menu)?

The critical warning is likely from Firefox (see e.g. bug #1160569) - nothing to be fixed in Inkscape itself.