As a reminder, users will only be prompted once per site.Many people would like to disable the Adobe Flash and Java plugins either for security or convenience reasons. That threshold will increase to 100 through October 2017, when all Flash sites will require an initial prompt. For Chrome 55, starting in January 2017 prompts will only appear for sites where the user’s SEI is less than 1. to 100% of users) in Chrome 56 Stable (February).įlash prompting will only be enabled for sites whose Site Engagement Index (SEI) is below a certain threshold. HTML5 by Default was initially rolled out to 1% of Chrome 55 Stable users (December), followed by a full deployment (i.e. By the end of the month we will progress on to the next phase on the ramp and everyone will be at least at 8. HTML5 by default has shipped and we are currently in the process of ramping up the SEI threshold, per the schedule below.Ĭurrently 87.5% of population have an SEI threshold score of 4 and 12.5% has a threshold score of 8 (we do this to measure the impact of the threshold change).

Updated Intent to Implement (using Site Engagement scoring).

2.15 Flash Player blocked as 'out of date' (Target: All Chrome versions - Jan 2021).

2.14 Remove the Ability for Extensions to Inject Flash Content Settings (Target: Chrome 86 - Oct 2020).

2.13 Remove Support for Hostname Wildcards for PluginsAllowedForUrls (Target: Chrome 85 - Aug 2020).

2.12 Additional warning on Flash Player activation prompt (Target: Chrome 83 - May 2020).

2.11 Flash Disabled by Default (Target: Chrome 76+ - July 2019).

2.10 Non-Persisted HTML5 by Default (Target: Chrome 69 - September 2018).

2.9 Unify Flash Settings (Target: Chrome 62 - Oct 2017).2.8 Remove 'Prefer HTML over Flash' from chrome://flags (Target: Chrome 61 - Sept 2017).2.7 PPS Tiny - No Same Origin Exceptions (Target: Chrome 60 - Aug 2017).2.6 PPS Tiny - Remove Un-sized (0x0 or hidden) content Exceptions (Target: Chrome 59 - June 2017).2.5 HTML5 By Default (Target: Chrome 55+ - Dec 2016).2.4 De-couple Flash Player (Shipped: Chrome 54 - Oct 2016).2.3 YouTube Embed Re-Writer (Shipped: Chrome 54 - Oct 2016).2.2 Plugin Power Savings Mode - Tiny (Shipped: Chrome 53 - Sept 2016).2.1 Plugin Power Savings Mode (Shipped: Chrome 42 - Sept 2015).1.2 Support for AllowOutdatedPlugins disabled (Target: All Chrome versions - Sept 2021).

1.1 Flash Support Removed from Chromium (Target: Chrome 88+ - Jan 2021).

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