Thunderbird 91.0.3 will not see Birdiesync as Add-On

[Dieter]

After updating Thunderbird to version 91.0.3 I cannot more get BirdieSync and Thunderbird to connect.
I tried uninstalling Birdiesync on Thunderbird 91.0.3 and a made a reinstall. But, now Birdiesync is not present in Thunderbird as Add-On.

I cannot synchronize between Android and Thunderbird.

[Dieter]

I went back to Thunderbird 91.0 and it works.
Please update Birdiesync.

[Birdy]

Hello Dieter,

There was a change regarding the way Thunderbird 91.0.2 referenced its main toolbar which prevented the installation and starting of BirdieSync add-on. Could you please update to BirdieSync 3.2.5.1 which should fix the problem ?
Thanks.

[Dieter]

Yes, it is fixed! Thanks!