fix in tweet video url appar only 1 time
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
background fox tail breaks when click on tabzilla

Also add <section id="bgfx">
dark line issue with chrome fixed #89
Update index.html
Merge remote-tracking branch 'upstream/master'
starting spanish translation
Merge pull request #96 from ramabit/master

starting spanish translation
Merge pull request #92 from varghesethomase/fx10

dark line issue with chrome fixed #89
Merge pull request #88 from amalkrishna/patch-1

background fox tail breaks when click on tabzilla
Merge branch 'master' into gh-pages
[Bug 1093791] Analytics added
Fix #84 Twitter card summary with large image
Merge pull request #98 from luckylavish/master

[Bug 1093791] Analytics added
Merge branch 'master' into gh-pages
Merge pull request #97 from mozillavenezuela/master

Fix #84 Twitter card summary with large image
Merge branch 'master' into gh-pages
fix Spanish language switching