If you tend to accumulate tabs and forget to close them then the Unload Tab [1] extension is a must. Your browser becomes laggy after opening 5 pages with

If you tend to accumulate tabs and forget to close them then the Unload Tab [1] extension is a must. Your browser becomes laggy after opening 5 pages with flash elements? Just right-click on the current tab > "Unload Other Tabs". You can also set it to automatically unload background tabs after a certain amount of time. [1]: https://addons.mozilla.org/en-us/firefox/addon/unloadtab/ https://addons.mozilla.org/en-us/firefox/addon/unloadtab/