Rated 4 out of 5 stars

First of all, thank author for quick reply.

Seems still have no solution to hide the icons and using content-menu instead (I visited github to read the similar issue, and someone already has the same request.)
I use a stupid mtd. to make my tiddlywiki page look a bit better, by custom CSS (User Style) :
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@namespace url(http://www.w3.org/1999/xhtml);
/* TiddlyWiki, shink the icons of FF addon "Local FileSystem" to 1px */

.alien-lfl-href-buttonLink {
margin-left: 1px;
margin-bottom: -3px;
display: inline-block;
width: 1px;
height: 16px;
}

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Last Reply : (Oct. 10, 2015)
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Thanks for creating this useful extension.
.
And It's becuase I'm using tiddlywiki (a self-contained wiki). "Local FileSystem Links" works seamlessly with tiddlywiki, but all the links on the page has the icon, due to all links being interpreted as local file links, and totally make the wiki page looks messy.

This review is for a previous version of the add-on (0.99.37). 

Thanks for the review (which also pointed me to tiddlywiki which seems to be a nice piece of software).

I support your idea of optionally hide the icon (or maybe even hide it by default since it often is the cause for troubles).
Unfortunately, I currently don't use the extension myself and don't have the time to make changes. Still, I try to react to user contributions in time, if someone sends pull requests.

You could start by adding your issue to the list: https://github.com/feinstaub/firefox_addon_local_filesystem_links/issues