Some small fixes in options page (mostly translation and css compatibility with Firefox)
90% Firefox compatibility, but I give it in a separated zip, because manifest.json is a little different.
Added option to treat unparented tabs as children of the active (opened from bookmars or from ctrl+t shortcut)
Some webpages like Spotify won't allow a right click. This is why Vivaldi needs to be fixed. In chrome you can right click choose cast and the cast icon appears in the top right corner near other extensions. Right click on that icon and choose always show. This will now allow you choose to cast on pages that won't allow right clicking........but this is missing in Vivaldi
@TbGbe@dLeon Thanks for your help. @dLeon followed your suggestion and it worked without a problem. @TbGbe The link was helpful in getting started with the problem, but this works even without the extension so I uninstalled it seeing as it was not doing anything anymore and directly used the URL instead.
Edit: Using this method, I have to sign in again when I open an incognito window (as expected), but that's not a huge issue for me.
@RedLenin It worked for me for one year - until last update of Vivaldi! I never used the App, because it´s only a small version of the website.
But the extension worked well and now I get a blank popup, when I click on the extension icon. (see uploads)
So I think it has to do something with the last update of Vivaldi and IMHO it is that one:
Upgraded to Chromium branch 58
It works in Chrome 57 (Stable Channel) and is not working in Vivaldi 1.9.811.13 which changed to Chromium 58.