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How to determine if a mobile browser can install Flash?

I came across several sites, including mine, that encourage users to download Flash, even if their browser cannot install it. I want to avoid this messy messaging by discovering that a mobile browser can install Flash, but doesn’t Flash

Some well-known mobile browsers that cannot install Flash:

  • Safari iOS
  • Android Chrome Beta
  • Android Firefox

Instead of creating an ever-changing Flash installation list, I would like to discover this in general terms in Javascript.

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In any browser, there is no "Does your browser support the X extension option."

I believe the only option is to create a list of known good user agents.

  • Some Android devices support Flash

  • These devices are not displayed when installing Flash.

  • Whitelist devices that Flash is known to run on. This list should remain relatively small, as Adobe will gradually disable mobile Flash.

In addition, since the installation mechanism for mobile browser extensions is not standardized, you cannot help users install Flash on a mobile.

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Source: https://habr.com/ru/post/1396740/

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