Developer Adblock Plus: high memory usage is partly due to bug in Firefox




The creator of Adblock Plus, a popular add-on that ad blocking, commented on a study showing that the extension is a very high memory usage in Firefox can bring. The problem is recognized, but especially a bug in Firefox would play an important role.

Adblock Plus The Australian programmer Nicholas Nethercote published this week a blog posting that the memory hunger of the Adblock Plus add-on is provided criticized. The extension by default claims 60 to 70MB when merely switching on Adblock Plus. In addition, each iframe, which usually costs a container ads are placed approximately 4MB. Because large numbers of web pages iframes accommodate, the memory usage of Firefox with Adblock Plus enabled can add up quickly.

When loading a test page with more than four hundred iframes memory hungry Firefox rises to more than 2GB. Also, the slow page loading. Without Firefox adblocker would ‘only’ claim 370MB and does the processing rapper. The programmer then wonders whether the builders of Adblock Plus no optimizations can be implemented. Their add-on

Meanwhile, the developers behind Adblock Plus an answer formulated this question. Thus, a substantial portion of the memory usage could be explained by the process of Firefox which they see as a bug. If Adblock apply a stylesheet on an element to hide it, makes Firefox backstage getting a copy of the stylesheet. The Mozilla developers hope that this bug in future Firefox versions knows crush.

Adblock Plus could be. Still improved self So the makers build an evaluation option for choosing which filters are effective and which are not determined. Little-used filters can then be removed, leaving the speed increases and the potential memory usage can be reduced. Currently, the add-on contains about fifty thousand filtering rules.


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