Lazy tabs
Open links in paused (discarded) tabs and pause selected tabs (from the right-click context menu). Also with "Lazy Mode".
What is Lazy tabs?
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Summary
This extension allows you to discard tabs and open links, bookmarks and bookmark folders in discarded tabs.
It adds a button on the tab bar that turns on/off the "Lazy Mode". When Lazy Mode is ON all new background tabs are automatically paused.
You can't pause the current active tab, just switch to another tab and pause it from there. If you have bookmarks with URLs like addons.mozilla.org or support.mozilla.org, you should open them from the context menu item, Lazy Mode can't intercept requests to that sites for security reasons, I guess. This only happens with bookmarks and Lazy mode, otherwise everything works fine.
This add-on needs some permissions. If you're worried about that, just read the source code. It will take you less than a minute.
BACKGROUND.JS
let lazyMode = false; let lastOpenedTabId = 1;
User reviews
Safety
Risk impact
Lazy tabs is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install Lazy tabs if you trust the publisher.
Risk likelihood
Lazy tabs has earned a fairly good reputation and likely can be trusted.