This extension is quite useful, but there are some features that I would really like to see added:
1. I often use the extension with the page-down button. Normally, I expect the next page to start from the top. However, on the last page, when the content ends prematurely, the next (last) page starts somewhere in between. This disrupts the reading flow, as I have to manually search for the beginning of the text.
2. There is no indication of how much of the page has been read. It would be helpful to have a page number, scroll bar, or some other visual cue to track progress.

Nice extension especially for websites that don't have reader view automatically available. Best part is, this extension doesn't require any permission. It works fine when we want to open a link of open the current page in a new reader view tab.

There is one minor issue though. "Switch to Reader View" context menu which I think will open the current page in reader view in the current tab does not work. Nothing happens when clicking on this menu item. But for the same page, "Open in Reader View" works which opens the page in reader view in new tab.

It seems the reader view feature is kind of hidden in Firefox Quantum, did I miss something? Why is Firefox not making this a button? Anyway, this add-on opens pages in the reader view which can help with large blocks of text.
"Switch to Reader view" does not work for some reason but "Open in Reader view" works.

I've been a user of this add-on for over a year and had been quite satisfied prior to the add-on swapping to a Webextension. This is why I can only rate it 4/5 stars instead of 5/5.

Since Firefox 57, the add-on lost a few key features that I found very helpful. Namely, being able to right-click a link and choose to either "Switch to Reader view" or "Open in Reader view". It's not a big issue, but it adds up to a fair amount of repetitive motions over time in needing to close multiple tabs. This could actually be mitigated a fair amount if the other feature I use to use quite often wasn't taken away: being able to "open in reader view" when right-clicking a link when reader view is already open.

Opening links within Reader View into another Reader View has been removed entirely from the update to Webextensions. This was very helpful in not having to click on the link, wait for the page to load, then open up Reader View separately. This was one of the big selling points in using the Add-on for me initially. I hope this feature is eventually added back.