While this extension works reasonably well, I can not recommend anything related to pinboard.

Pinboard looked promising 5 years ago, when I paid for an archival account. Now that my subscription is ending, I can not get Pinboard to send me my archive. Emails went unanswered, my post to the pinboard google support group was not approved, dm on twitter was unanswered. A public comment on twitter got me a reply that he'd "look into it", then nothing.

Maciej is infamous these days for his complete lack of customer support -- I've had multiple unanswered emails over the past 5 years. The official Pinboard twitter account is a mess of political rants. Save your money -- and your bookmarks -- and look elsewhere. My current recommendation is raindrop.io