I like it. Rated 5 out of 5 stars

Seems simple, fast and effective, so far.
Author: good job!.

Question 1:
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How do you specify if a file (PDF, XLSX, etc) is to be opened by either:
Google Docs Viewer -OR- ZOHO Viewer?
(I don't see anywhere a choice for the user to select which viewer to use...).

Question 2:
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Is there a way to turn OFF the little ["HELP"] button,
that always appears in the lower-right of screen,
when viewing any document with this great plugin.
This ["HELP"] button is not needed at all...
Can you remove it?

Thanks!
SFdude

This review is for a previous version of the add-on (4.2.7).