View source for Improved missing plugin experience

{{FeatureStatus
|Feature name=Improved missing plugin experience
|Feature stage=Planning
|Feature status=In progress
|Feature health=OK
}}
{{FeatureTeam
|Feature product manager=Chris Lee
|Feature feature manager=Justin Dolske
|Feature qa lead=Paul Silaghi
|Feature ux lead=Alex Limi
}}
{{FeaturePageBody
|Feature overview=Our current experience when a plugin is missing is pretty abysmal, and rarely works for anything else than a very small set of plugins. We want to fix the experience for the small set of plugins that have a lot of users, and stop pretending to supply an auto-detect service for the others.


This feature falls primarily in the '''Experience''' category (from the "Discover, Experience, and Connect" vision statement.)
|Feature requirements=* Ability to detect and point to relevant locations for the major plugins
** PFS does this
* Mozilla needs to host permanent redirect URLs for this, so we can change quickly, should downstream providers suddenly change their URLs or similar
** PFS basically does this.
* {{bug|268936}} - It should be possible to say "Don't ask me to install this plugin again" 
* We should never imply that installing a plugin is absolutely necessary for the browser to function (like we kind of do today), but rather that plugins are required for certain types of content
* {{bug|678707}} - We should label which plugins you'll end up downloading/installing in the location where we show the "Missing Plugin" message. Right now, you don't know until you go ahead and start the process
* {{bug|264254}} (essentially WONTFIX) - We want to stop using Plugin Finder Service, and instead hardcode the small list of plugins we care about to simplify the code and maintenance burden
** We are maintaining plugin data for plugincheck anyways
}}
{{FeatureInfo
|Feature priority=P2
|Feature rank=2
|Feature theme=Experience
|Feature roadmap=User Experience
|Feature list=Desktop
|Feature engineering team=Desktop front-end
}}
{{FeatureTeamStatus}}