Want to visit the pages you had open the last time you used Firefox? Here are some easy ways to do it.
If you had tabs and windows open when you closed Firefox, the default Firefox Start page will have a Restore Previous Session button on it. To get your tabs and windows back, just click it.
Here's how to get your tabs and windows from a previous session back if you don't use the default Firefox home page:
See Configuring session restore for instructions on setting Firefox to always show your windows and tabs from last time when you start it.