Possible Duplicate:
Make Firefox automatically set zoom level for new webpages
Windows 7, Firefox 7.0.1
I want to increase the size of everything on the screen without changing the display resolution. For all other Windows items, I increase the size in Control Panel\Appearance and Personalization\Display. But for Firefox, how can I increase the display size within Firefox?
More specifically, I want to have the zoom-in level as one Ctrl++. It seems that such a zoom-in can be set to each website. How can I make one zoom-in level as default for all websites?