As reported in https://github.com/webcompat/web-bugs/issues/50378 the scrollbars weren't showing initially, since the site was using `overflow-y: overlay;` which is not supported in Firefox. But now they have applied a "fix" with `@-moz-document` changing the rule to `overflow: auto;` , so at least the scrollbars are showing in Firefox release
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As reported in https://github.com/webcompat/web-bugs/issues/50378 the scrollbars weren't showing initially, since the site was using `overflow-y: overlay;` which is not supported in Firefox. But now they have applied a "fix" with `@-moz-document url-prefix` changing the rule to `overflow: auto;` , so at least the scrollbars are showing in Firefox release