Close Unused, Inactive Tabs Opened In Firefox To Free RAM & Make It Faster

by Rohit Khurana on November 1, 2011


As we all know, web-browser is one of the important utilities in our system for accessing and surfing web. Along with this, we also know that web-browser consumes lot of space of the Ram in your system and hence it may also result in slowing down the speed and performance of the overall system. Among the different web-browsers available today, Firefox web browser is still perceived by many as a RAM eater and a program that pushes RAM usage on many configurations to the limit, which is not at all good in respect of the system life. Although, it is not 100% correct because recent tests conducted for the same shows that some other web-browsers available in the market takes even more space as compared to Firefox.

Still, the developers of Firefox have started to implement features in the browser to improve its memory usage and performance, so that it can become light and it may consume lesser space as compared to its earlier versions. Although, there have been many changes and many new features have been already added, but among the newly features introduced, one is that prevents the loading of all tabs during session restore on browser start up. Similar to this one one more feature has been introduced, which we are going to discuss today as it can speed up browser start up considerable and reduce the initial RAM use as well.


As said, very similar feature is planned for upcoming Firefox versions which the developers says that they have a plan to integrate this feature into the browser that unloads tabs in the browser after an inactivity period. It will definitely free up some memory but also mean that it would take longer to activate the tab again, which user may not like.



Now, if we look into this then we may observe that the Firefox add-on Dormancy adds the future Firefox feature to current versions of the browser and may reduce the memory consumption to some extent. Although, the developer have clearly stated that it should be considered only as an experimental add-on that may cause issues on some systems. So, users need to be little careful while using it.

This add-on simply unloads tabs after five minutes of inactivity, thus reducing the memory consumption to some extent. Although, this time interval has been set up to 5 mins by default, but Firefox users can anytime change the interval in the Firefox about:config configuration. In that the extensions.dormancy.TabDormancyAgeMs preference defines the time tabs need to be inactive to be unloaded, the preference extensions.dormancy.TabCheckIntervalMs the checking interval. One may see that both these values are set to five minutes by default.

Although, it may prove helpful but still one of the strange thing that we found that you won’t always see a gain, or reduction in RAM to be precise. It is usually easier to restart the browser for a larger reduction of RAM use by the web browser, then by using it. So, users may give it a try and may see if it suits them.

Download Dormancy add-on

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