The Mozilla Firefox web browser can keep a multitude of web pages open in the same window under different tabs, and it has a handy set of keyboard shortcuts that let you quickly navigate between those tabs.
This first set of keyboard shortcuts for switching Firefox tabs is similar to ALT/CMD-Tab:
With these two next/previous keyboard shortcuts, you can quickly cycle through all your open Firefox tabs.
This next shortcut lets you use the number keys to jump to a specific Firefox tab:
This is one of my most-used keyboard shortcuts when reading new items in Google Reader — use the j/k Google shortcuts to browse through the recent headlines, hit “v” to open anything interesting in a new tab, then press Cmd+1 to jump back to the first tab which contains Google reader. When I have finished browsing all the new stories in Google Reader, anything that caught my interest is waiting in an open tab.