<p dir="auto">Tooltip not showing in Firefox.</p>
<p dir="auto">Left - Firefox.  Right - Chrome</p>
<p dir="auto"><a target="_blank" rel="noopener noreferrer nofollow" href="https://user-images.githubusercontent.com/17413180/83816088-3e0c2300-a687-11ea-95cf-a18b48470de1.png"><img src="https://user-images.githubusercontent.com/17413180/83816088-3e0c2300-a687-11ea-95cf-a18b48470de1.png" alt="Screenshot from 2020-06-04 17-01-32" style="max-width: 100%;"></a></p>
<p dir="auto">Firefox: 76.0 (64-bit)<br>
Chrome: 83.0.4103.61 (Official Build) (64-bit)</p>
<p dir="auto">Macos using Python3.8 --&gt; python setup install<br>
I can find apache_superset-0.38.0-py3.8.egg was created  in site-package /</p>
<p dir="auto">How can I init superset and start server</p>
<p dir="auto">(please complete the following information):</p>
<ul dir="auto">
<li>superset version: <code class="notranslate">0.38.0</code></li>
<li>python version: <code class="notranslate">3.8</code></li>
<li>node.js version: <code class="notranslate">14.12</code></li>
<li>npm version: <code class="notranslate">6.14</code></li>
</ul>
<h3 dir="auto">Checklist</h3>
<p dir="auto">Make sure these boxes are checked before submitting your issue - thank you!</p>
<ul class="contains-task-list">
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox"> I have checked the superset logs for python stacktraces and included it here as text if there are any.</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox"> I have reproduced the issue with at least the latest released version of superset.</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox"> I have checked the issue tracker for the same issue and I haven't found one similar.</li>
</ul>
<h3 dir="auto">Additional context</h3>
<p dir="auto">Add any other context about the problem here.</p>