Thank you for this useful extension.
When I open Gemini in Vivaldi, the extension's menu icon doesn't appear.
It does appear in Chrome, even though I'm using the same account.
By the way, ChatGPT and Claude work fine in Vivaldi.
I tried it in Incognito mode as well, but the issue persisted.
Since some pages work fine, it’s unlikely that this is a conflict with other extensions.