Same problem here with chromium, this is the output when starting from command line:
$ chromium-browser
** (exe:5950): WARNING **: Failed to open webapp application path dir /usr/share/ubuntu/unity-webapps/userscripts: Error opening directory '/usr/share/ubuntu/unity-webapps/userscripts': No such file or directory
** (exe:5950): WARNING **: Failed to open webapp application path dir /usr/share/gnome/unity-webapps/userscripts: Error opening directory '/usr/share/gnome/unity-webapps/userscripts': No such file or directory
** (exe:5950): WARNING **: Failed to open webapp application path dir /usr/local/share/unity-webapps/userscripts: Error opening directory '/usr/local/share/unity-webapps/userscripts': No such file or directory
These directories don't exist but I did find the relevant files in:
/usr/share/unity-webapps/userscripts
Same problem here with chromium, this is the output when starting from command line:
$ chromium-browser ubuntu/ unity-webapps/ userscripts: Error opening directory '/usr/share/ ubuntu/ unity-webapps/ userscripts' : No such file or directory
** (exe:5950): WARNING **: Failed to open webapp application path dir /usr/share/
** (exe:5950): WARNING **: Failed to open webapp application path dir /usr/share/ gnome/unity- webapps/ userscripts: Error opening directory '/usr/share/ gnome/unity- webapps/ userscripts' : No such file or directory
** (exe:5950): WARNING **: Failed to open webapp application path dir /usr/local/ share/unity- webapps/ userscripts: Error opening directory '/usr/local/ share/unity- webapps/ userscripts' : No such file or directory
These directories don't exist but I did find the relevant files in: unity-webapps/ userscripts
/usr/share/