Do you mean an extension that reloads a tab every so often (e.g., every 5 minutes)? If you do not see it on the Android section of the Add-ons site, then maybe no one has made a compatible version yet. https://addons.mozilla.org/android/ To request or propose a new extension, you could try this forum: [https://forums.mozilla.org/addons/viewforum.php?f=28 Add-on Ideas / Looking for an add-on • Mozilla Add-ons Forum]