When Mega opened its gates to the public for the very first time it became clear immediately that the site operators had no love for any browser but Google Chrome. The first public blog post on the site highlighted this by calling Google Chrome "the leading browser, by far" and concluding that "there is currently no alternative to using the most advanced browser currently in existence - Google Chrome".

As far as technical explanations go, the site operators mentioned lack of writing files from JavaScript in all browsers but Chrome, and that some browsers require that file downloads or uploads are to be stored fully in memory.

If you open Mega using the Firefox web browser right now you are presented with a notification that pops up after a couple of seconds that informs you that Mega has released an extension for the web browser that remedies the situation.

It states:

Mega Firefox extension Install the Mega Firefox extension for vastly improved download performance. It will allow you to batch-download an unlimited number of files without any size restrictions. The Mega Firefox extension is secure and invisible. If you prefer to use Mega without extension, we strongly recommend you use Chrome.

The add-on adds the option to Firefox to download files without any size restrictions, bypassing the browser's requirement to store the entire file in memory.

The Mega website does not offer any explanation on what the extension does besides what is displayed on the notification prompt. The add-on itself works silently in the background and becomes only active when you download files hosted on Mega using the Firefox web browser. Note that it does not offer any options or an interface, and that there is no indication that it is actually working other than improved download performance.

Mega plans to release a first version of an open source sync application for MEGA in the next week.

Update: Do not confuse the Mega extension that is offered on the Mega website with the Mega add-on offered on Mozilla's add-ons repository as they are not not the same. The add-on on the Mozilla website is a third party add-on.

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