Hello rhea jane.

There are no Pop-up Blocker Options in Firefox for Android. However, if you wish to disable Pop-ups, you can follow these instructions:

 Type about:config in the address bar
 Search dom.disable_open_during_load and set it to false 

To re-enable the Pop-up blocker, set dom.disable_open_during_load to true

I hope you find this information useful.

Albarr :-)

Thanx for fast reply , its really helps