Tabs with PDF file crashes on close
After upgrading to 1.9 every time I close a tab with a PDF in Vivaldi it crashes. After reopening, the PDF window opens as it was in full screen, although it's not in fact marked as full screen. I have to manually enter and exit full screen. At this very moment I am able to close the problematic tab. Later, however, when I open another PDF file, it crashes on closing again.
Disabling "Enable Internal PDF Viewer" (Preferences > Webpages > Plugins) is a workaround.
MacBook Air, OSX El Capitain