A Preview of Tab Previews – These Weeks in Firefox: Issue 153 – Firefox Nightly News
DRANK

Highlights Tab Previews! Congratulations to DJ for getting these landed. Currently disabled by default, but you can test them by setting `browser.tabs.cardPreview.enabled` to true ...

blog.nightly.mozilla.org
Related Topics: Web Standards / Browsers Firefox
1 comments
  • タブをホバーした時にプレビューが表示される機能がフラグ付きで実装された。設定で browser.tabs.cardPreview.enabled を有効化すると試せる