Firefox...
 

You know in Firefox you have tabs?

Well next to the tabs I use to have a + button to add a blank page..

the + buttons have now disappeared!

Anyone know how I get it back?

I've got a open new tab icon at the top next to the refresh button but I'm so use to having it next to my tabs.. i want it back...

I still got mine. Did you update your Firefox?

Not that I know of..

but I did do something with my bookmark settings I think..

Yesterday I was trying to hide my bookmark bars, but couldn't find the option to.. and i think in the process I clicked something about having book marks down the side? (I now have a little drop down arrow at the end that basically list all the tabs I've got opened..)

If that's any help? I couldn't find where I found that option yesterday =.=

do I need to post a screenshot?

Not sure if this will work but right click the bar with file edit etc and click customize and restore default settings.