I can't translate description of front page in my multilingual site
All major translation issues for metatag module are now fixed (see: https://drupal.org/node/1282620, https://drupal.org/node/1688286)

All you have to do is:


Go to metatag settings page: /admin/config/search/metatags
Override your frontpage (/admin/config/search/metatags/config/global:frontpage) and write
your infos in default language
Save your modifications
Go to your homepage
Flush site cache
Switch site language for every other language (this way all strings can be generated for translations)
Go to /admin/config/regional/translate/translate and search (in default
language) all strings you have to translate and translate them


This should be enough.

If you are using metatag submodules like Context be aware that translations issues are not still full fixed (see: https://drupal.org/node/1986032)

Hope this help