This is the second time I experienced this trouble . In the first occasion , I got lucky in fixing it and I recall I have to access the " Settings " of Google or " Google Chrome " . I tweeked the advance settings going to the extensions portion but I forgot the details of the process as described in a different forum .

However the 2nd time, and up to this writing I cant fix the trouble any more as accessing the icon to reach the setting is being prevented.( The list diappears at once. )

I will appreciate if you can email me the soluton . Thank you.