Hello!
Thank you for your feedback. Unfortunately, so far there is no extension for many browsers, the extension is available only for Google Chrome and Yandex Browser.
But our tech. the department is engaged in its development for many browsers, including Firefox. We hope that in the near future we will be able to inform you of the news about the implementation of the extension, and your purchases will be more profitable and convenient.
If you have questions and suggestions about the work of our service, please contact. Have a nice day!
Sincerely,
LetyShops team