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Is this CISCO OpenH264 plugin a virus?

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For many years, My firefox locks when I have many tabs.

I always auto-update firefox 64bit windows standard korean version.

I today found locking is because of CISCO OpenH264 plugin.

It is updated from CISCO server, not from firefox server.


SHA-256 is "1ED7877024BE63A049DA98733FD282C16BD620530A4FB580DACEC3A78ACE914E"

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