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SoundPlus Requires Restart

SoundPlus customizes the sound that is played when a new message arrives for a particular contact in the address book, similar to mobile phones. There is also a variation that is played when a message arrives and it is a continuation of a thread.

Rated 3 out of 5 stars (15)
7 users

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Works with Thunderbird 2.0 - 24.*
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AlertSwitch

Simply turn on or turn off the alerts shown & sounds played when new message arrives.

Rated 4 out of 5 stars (6)
677 users

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Works with Thunderbird 115.0 - 136.*
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