Excellent extension. Exactly what I was looking for. Needed easy way to setup window for Gmail, and this made it simple and fast.
Only suggestion might be to have it AUTO-SIZE certain pages. Like when I go back to Gmail, why couldn't it just set it to 133% without me clicking it. To me, the current idea / implementation of his / their Auto-Size just doesn't make sense. But, what I'd do is have the webpage stored and the scaling, then auto-set it when som,eone returns back to *.gmail.com.
That is reason why deducted a star, but I feel guilty for that. Because Developer is topnotch and understands what people need. Might come back and give back the 5th star. Just seems like "something" is missing right now to make it Excellent versus Above-Average.
If you enable the 'Apply AutoFit when page loaded or browser resized' setting, then by default AutoFit zoom will be applied to every page. However, if you then change the zoom level for a specific page using the toolbar button popup, that zoom level will always be applied instead of AutoFit zoom whenever visiting that page or pages from the same site. If you later click the 'Reset' zoom button while on that specific page, then AutoFit zoom will be applied by default.