I'm trying to find an extension on Mozilla Firefox ""Seostack Keyword Tool" but couldn't find it.

Hi, I'm trying to find an extension on Mozilla Firefox ""Seostack Keyword Tool" but couldn't find it. I need this extension for my website [https://anyboxinggloves.com/ https://anyboxinggloves.com/], as I need to update it weekly, as a SEO point of view. This extension provide all keyword related to our niche in just 1 click. I've this on Chrome but, I do use Mozilla normally, and don't want to switch again and again to chrome. Regards, Talisha