In the upper right corner there is an icon that looks like a 'crescent' wrench. That is the same a FF"Tools".
Click on that and when the window opens go down to "extensions"...
Click on that and then on the 'lower right' there is a blue link that says..."Get More Extensions"
Click on that and add whatever toots your whistle! just like FF~~~
IF you use more than one computer like I do there is an extension that will 'sync' your browser across computers.
I can go upstairs and use the office computer, take my 'netbook' on the patio or into the shop, go to visit my Lady Friend, etc. and everything is just like it is here at my home base!
Go For IT!!!
~~~GB~~~
~~~GB~~~