manifest_note

//The diffrent betwen browsers, from line 455
//chrome
"incognito": "split",
"permissions": ["tabs","<all_urls>","notifications","storage","contextMenus","unlimitedStorage","tts"],
"optional_permissions": ["downloads","downloads.shelf","clipboardRead","clipboardWrite","bookmarks","history","management","sessions","pageCapture","background","topSites"]

//firefox
"permissions": ["tabs","<all_urls>","notifications","storage","contextMenus","unlimitedStorage","management","sessions"],
"optional_permissions": ["browserSettings","downloads","clipboardRead","clipboardWrite","bookmarks","history","topSites"]