Uses slightly less memory because of disabled redundant and optional code.100% Firefox sourced: As safe as the browser that has seen years of development.Pale Moon, though, is optimised to take full advantage of modern processors, and this can give it a huge advantage over Firefox in some areas. In particular, Firefox is compiled with the most conservative of settings, to ensure that it'll run on even ancient CPUs. And Pale Moon also drops support for Internet Explorer's ActiveX and ActiveX scripting technology, which also offers a security benefit as it means the browser can't be infected by malicious ActiveX controls. The crash report has also been stripped out, as it's designed to work with server-side technology that isn't available on.

The program has been made more lightweight, for instance, by stripping out little-used components like the accessibility features, and the parental controls. Nonetheless Pale Moon has a fairly stout offering of extensions, especially compared to other alternative browsers when considering Pale Moon is not merely a clone, using the same extensions as Firefox or Chrome.Pale Moon is a customised version of Firefox, which has been carefully optimised for speed and efficiency. Pentadactyl registers an error (as of Pale Moon 31.1.1) when attempting to install it from Pale Moon’s website but can be installed from a file if compiled from source. For instance, uBlock Origin is listed at but must be installed from github. Unfortunately, some of the extensions listed on the website do not work, but in addition to those there are some that can be downloaded from other sources. The add-on eco-system is not quite as healthy when it comes to Pale Moon but it does offer extensions and provides an add-on database from which to download them. In fact Pale Moon is a fork of Firefox the two deviated from one another a dozen years ago, and Pale Moon has more closely kept the feel of Firefox from that time than Firefox itself has done. Pale Moon is an excellent Firefox-like browser, reminiscent of “old firefox,” a la “stratus”, a pre-australis GUI style. Pale Moon, a Web Browser with a Retro Vibe

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