If this works -- and my first impression is that it does -- it's a genius idea.
The dealbreaker, however, is that to enable the asymmetrical spacing functionality, you must be logged in to their system.
Although they promise not to abuse any data collected, I don't recommend using browser extensions that require logging in to third-party servers.
This is easily a 5-Star extension if they decide to remove the login requirement.
Hopefully they will replace the login routine with a simple optional analytics system (with all data viewable before transmission). That way, they can continue to improve their product without creating any potential privacy or security issues.
Thank you to Asymmetrica Labs for your reply. I understand your concern, but how about seeing if there is an issue before coming up with a restrictive solution? Your services *are* open to the public (anyone with an email address, which is just about everyone with access to a computer), so that seems like a red herring. It's unlikely your fascinating service would be abused, and if it was, abusers could be filtered by their abusive behavior.
Also, your website states that your closed-source extension sends back data to your servers.
We currently require an account only to authenticate the extension's access to our own servers (not strictly third-party). Otherwise our services would be open to the public and to abuse. We do understand that this requires extra work for our extension users. But from the beginning we've tried to make the process quick and painless as possible, and we don't spam or release the address to any third parties.
nice add-on, working fine really seem to help with reading. When copy text of a website with add-on active and pasting it on other places (also within FF), spaces between words sometimes disappear. FF57beta, German language
Yes, some browsers don't properly handle atypical formatting in text (like word spacing, letter spacing, etc), and unfortunately this lack of attention to detail can change within a browser from release to release. This is unfortunately something we can't control.
However, in many apps you can paste content with a "Paste and Match Style" option (or similar), which will strip formatting and paste the text properly.
I don't know why it needs to log in, I'm not really convinced by the anti-abuse explanation, as I think many extensions using API doesn't require to be logged. I'm sure there can be other programmatically means, less dangerous for privacy, to avoid abuses, it sounds too much like a data-farm for me. but anyway, my problem is: I cannot register. They say: server failure.
Recent Firefox upgrades have silently broken certain aspects of legacy APIs, including the login issue you're seeing. This issue is specific to Firefox and does not effect our browsers on Chrome, Safari, or Opera.
Our WebExtension version (2.4.12) is under review and when released will correct the login issue. We apologize for the inconvenience!