On amazon I can't see the purchase boxes to click to buy something.
Almost all the click on boxes or fill in with a number for how many items you might want - are invisible. If I guess correctly, I can still click on them. But when I go to the used items page, all the boxes are clearly visible.
Modified
All Replies (1)
Check to see if an add-on has hidden the boxes. To do that run Firefox in safe mode, this will disable add-ons, for details see https://support.mozilla.com/kb/Safe+Mode
If it works in safe mode, use the procedure in the following link to identify what add-on is causing the problem - https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes