If you use CPALead to monetize "protected" content, check out their stats plugin:
https://addons.mozilla.org/en-US/firefox/addon/13751/
The CPALead Stats Ticker does not take up ANY of the viewable area on your browser as it stays in the Firefox webpage status bar which is located right above your task bar. If you highlight the ticker, you can see even more stats and edit how often it refreshes.
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Yet another reason to say with FF instead of migrating over to Chrome.