Warm Tab Pool by Pukhosos

Warm Tab Pool keeps frequently used web pages preloaded in hidden Firefox tabs, so they can be opened instantly when needed.

The extension is particularly useful for webpages where opening a fresh tab normally involves noticeable loading time.

Features include:

• configurable pools with sizes from 0 to 64;
• optional keyboard shortcuts for taking tabs from individual pools;
• multiple simultaneously active pool groups;
• automatic pool replenishment;
• group cloning, merging, renaming, and unloading;
• visual group graph;
• persistent configuration across browser restarts.

Warm Tab Pool does not modify the contents of the pages it preloads.