Add-ons/ShimsNightly: Difference between revisions

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'''Status: this document is in progress'''
'''Bold text''''''Status: this document is in progress'''


With the push to Firefox 57, we focusing on performance in Firefox. The majority of testing and performance data comes from Firefox Nightly users who provide telemetry back to Mozilla. As such we are restricting add-ons in Nightly to only WebExtensions and those marked with MPC=True.
Thank you for using Firefox Nightly. Using Nightly is helpful to the Mozilla community because it provides improved feedback on changes that are being made in Firefox.


'''This restriction is reversible'''. To do so go to about:config, look for the setting .... and set it to false.
The Firefox team is focusing on performance for Firefox 57. The majority of testing and performance data comes from Firefox Nightly users who provide telemetry back to Mozilla. Unfortunately add-ons that are not WebExtensions make performance measurements on Nightly much harder. Especially add-ons that are not multi-process compatible and use shims.
 
So we can quickly get measurements on the results of changes to Firefox, we are asking all Firefox Nightly users to stop using add-ons that are not multi-process compatible, or are not WebExtensions.
 
If you've seen a message like this:
 
 
It means you've got some add-ons that are not multi-process compatible or are not WebExtensions.
 
'''This restriction is reversible'''. To do so go to about:config, look for the setting:
 
''extensions.allow-non-mpc-extensions''
 
...and set it to ''true''.
 
However we'd like you to consider not reversing this preference. Leaving it set to false will give the Firefox performance team a much clearer idea of how much better we are making Firefox.
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