Tab key does not move to next field in browsers or any app.
As per subject, hitting the tab key does not jump from field to field in any web browser or application.
However, I can hit Shift+Tab and go backwards from field to field.
Obviously not much use when filling in a form.
Is there someway of restoring the default tab key behaviour to navigate forms ?
iMac (Retina 5K, 27-inch, Late 2014), OS X Yosemite (10.10.3)