After a long wait, it finally worked

Ne vous inquitez pas,, voici comment récupérer votre configuration

1: télécharger l'ancienne version 7.5.1: https://addons.mozilla.org/fr/firefox/addon/foxyproxy-standard/versions/
2: installer la via: about:addons
3: exporter votre configuration au format json
4: installer la mise à jour 8.2
5: dans les options, choisissez Import from older versions puis selectionner le fichier json précédent

Et voila, il n'y a pas mort d'hommes :)

Merci aux dévelloppeurs de l'extension, elle est géniale!!

Works nicely. There had been a slight issue with the version that got automatically installed yesterday - with the update today the old proxies got restored.
To all people ranting here, please calm down and better check out the corresponding github page
https://github.com/foxyproxy/browser-extension

I had been a bit surprised yesterday and then just checked that site - the README already explains it and more details are under issues.

You can restore the missing settings. Go to the version selection at https://addons.mozilla.org/ru/firefox/addon/foxyproxy-standard/versions/, install version 7.5.1, and disable updates until the developer fixes the issue.

Пропавшие настройки можно восстановить. Зайдите в выбор версии https://addons.mozilla.org/ru/firefox/addon/foxyproxy-standard/versions/ установите 7.5.1 и отключите обновления пока разработчик не исправит проблему.

Пользуюсь больше года! Отличное расширение! выручает постоянно.

amazing