IPhoto all of the sudden has started making triplicates of all my pictures plus taking every face in a group picture and making separate pictures. It is also very slow in responding. What happened?

Question

Why did  some of the photos in my iPhoto library on my laptop  appear  in the Mac iPhoto library.

Answer 1

-> Tap '''ALT''' key or press '''F10''' to show the Menu Bar
-> Update ALL your Firefox Plug-ins https://www.mozilla.com/en-US/plugincheck/
-> go to Tools Menu -> Clear Recent History -> '''Time range to clear: select "EVERYTHING"''' -> click Details (small arrow) button -> place Checkmarks on '''Cookies, Cache''' -> click '''Clear Now'''
-> go to Tools Menu -> Options -> Content -> place Checkmarks on:
1) Block Pop-up windows 2) Load images automatically 3) Enable JavaScript
-> go to Tools Menu -> Options -> Privacy -> History section -> '''Firefox will: select "Remember History"'''
-> go to Tools Menu -> Options -> Security -> place Checkmarks on:
1) Warn me when sites try to install add-ons 2) Block reported attack sites 3) Block reported web forgeries
-> go to Tools Menu -> Options -> Advanced -> General -> Remove Checkmark from '''Warn me when websites try to redirect or reload the page'''
-> go to Tools Menu -> Options -> Advanced -> Network -> Offline Storage (Cache): click '''Clear Now''' button
-> Click OK on Options window -> Restart Firefox
Check and tell if its working.