Fix Bug 1102594 - Replace Firefox landing page browser screenshots showing search box
[fix bug 1106065] Add version check for getConfiguration('selectedSearchEngine') on firstrun
Merge pull request #2554 from alexgibson/add-version-check-firstrun

[fix bug 1106065] Add version check for getConfiguration('selectedSearchEngine') on firstrun
Merge pull request #2563 from kyoshino/bug-1102594-landing-screenshots

Fix Bug 1102594 - Replace Firefox landing page browser screenshots showing search box