Palefill Web Technologies Polyfill Add-on

Palefill is an add-on for Pale Moon that injects polyfills into pages to improve compatibility.
Features

Polyfills are specified as “fixes” that are applied based on selector rules. Fixes currently can be:

• scripts that must be loaded
• injected inline-scripts
• Content-Security-Policy adjustments
• script content changes

It is possible to specify any combination of required fixes for a site. See the technical documentation for more details.
Supported Platforms

Palefill is developed and tested on the most recently released version of the Pale Moon browser. New features and fixes always target this browser and the then-current state of the web.

Extensions for Pale Moon, Firefox & SeaMonkey made by JustOff:

Pale Moon supports a number of command-line parameters for automation and to call up certain features otherwise unavailable:

• P "<profile name>"
  • Starts with a given profile name (profile name is case sensitive).
• no-remote
  • Enables running multiple instances of the browser cncurrently, with different profiles; usually used in conjunction with -P

This sounds like a typical problem of visiting a site that does dynamic updates of content but never actually reloads the document, leaks all over the place, and combined with leaving the browser open ON such pages for days or weeks (and even restored sessions may have bloat in the saved viewers), making the garbage and cycle collectors run out of headroom. The pauses in that case are caused by non-incremental GC/CC runs trying to recover resources but failing because the websites are such slobs that they keep a lot of resources locked.

A restart of the browser would fix this kind of thing, so if you changed extensions and issued a restart as a result, that would clear the problem. Even disabling a restartless extension could temporarily alleviate the issue giving you a red herring because it would give the browser a little extra headroom -- until that fills up too and you end up back under memory pressure (heap memory is usually not the problem here, but stack memory would be and that is limited) with the collectors trying their best to recover and failing to make a dent, then trying again, etc.

To analyse this kind of thing, about:memory reports usually give a good indication of the culprit sites. In a more limited fashion, about:performance -might- help too but if you're dealing with ghost windows or out of bounds allocations of resources it may not have anything to show.

This website is a repository for web content that has been deemed "legacy" and has been removed by their original publishers, and might otherwise be difficult or cumbersome to get.

This is still a new effort, so we will be growing our site with more legacy content submitted by users over time. This was primarily started to give people access to the "legacy" Firefox extensions people still want and need, but Mozilla has completely purged from existence, but we can imagine there are others with archived versions of things they got a long time ago, which are still useful, but are very hard to find by now.

Legacy Mozilla Firefox extensions

Mozilla has removed all "legacy extensions" (XPI) from their add-ons site in November 2018, leaving many users of older "long term support" versions of the browser, as well as browser forks, dead in the water. This holds a (hopefully complete) collection of the removed extensions as they were available from addons.mozilla.org prior to this purge by the company.

Print Edit allows editing of the web page content while in Print Preview mode. Editing the web page prior to printing can compact the layout and remove unwanted content such as adverts, sidebars and blank pages.

In Print Edit mode, the displayed content elements can be edited, formatted, hidden or deleted, prior to printing in Print Preview mode. It is possible to switch repeatedly between Print Edit mode and Print Preview mode. //

XPI version (Pale Moon & old Firefox)

instructions to replace the icon with one of your choice is simple:

1. Create an icon of your choice
2. Make 2 copies of this icon, one called "default.ico", the other called "main-window.ico"
3. Put these two files in Bin\palemoon\browser\chrome\icons\default\ under your portable Pale Moon folder
4. Restart Pale Moon Portable.

Voila!