od opto (Vývojář) v Čer. 13, 2021 · trvalý odkaz

if it is not identical to issue #111, please report what is happening here:https://github.com/opto/nostalgy-xpi/issues.

TB loads suddenly the addons at a time when it is not ready to receive them yet. That is not a problem of Nostalgy but again something broken due to continous changes in TB.
Please don>'t blame Nostalgy with 1 star when in reality, it is caused by TB changes. It happens only on fast computers - mine is slow, so this did not happen here. We are working on a permanent solution, a workaround is given above.