message: Avoid running `embed-gist-inline` in Firefox
  It's just not supported by the browser.
  Closes
diff: @@ -38,7 +38,7 @@ async function embedGist(link: HTMLAnchorElement): Promise<void> {
  );
  }
  } catch {
  - info.replaceWith(' (embed failed)');
  + info.remove();
  }
  }
  @@ -50,11 +50,15 @@ function init(): void {
  features.add({
  id: __featureName__,
  - description: 'Embeds linked gists.',
  + description: 'Embeds linked gists. Not supported by Firefox.',
  screenshot: 'https://user-images.githubusercontent.com/6978877/33911900-c62ee968-df8b-11e7-8685-506ffafc60b4.',
  include: [
  features.hasComments
  ],
  + exclude: [
  + // https://github.com/sindresorhus/refined-github/issues/2022
  + () => navigator.userAgent.includes('Firefox/')
  + ],
  load: features.onAjaxedPages,
  init
  });
  