Add restore session checkbox

source/2/2.1/2.1.1/firefox.rst

@@ -36,7 +36,7 @@ To zoom in if you find the text on a web page to small press :kbd:`control + +`.
 
 If you want a menubar for firefox right click the tab bar and click the checkbox for menu bar.
 
-If you want to view your firefox prefrences you can type about:preferences into the address bar. To have your seession restored each time you restart firefox is on the general tab of firefox prefrences is to press restore previous session. The tabs section has a checkbox to :guilabel:`open links in new tabs` instead of new windows which is checked by default. The checkbox for :guilabel:`When you open a link a new tab switch to it immediately` switches to new tabs when you open them.  
+If you want to view your firefox prefrences you can type about:preferences into the address bar. To have your seession restored each time you restart firefox is on the general tab of firefox prefrences is to press restore previous session. The checkbox for :guilabel:`Restore previous session` checkbox restores your tab when you close firefox. The tabs section has a checkbox to :guilabel:`open links in new tabs` instead of new windows which is checked by default. The checkbox for :guilabel:`When you open a link a new tab switch to it immediately` switches to new tabs when you open them.  
 
 I to copy text in firefox press :kbd:`Control +C`. To paste text into firefox press :kbd:`Control+ V`.