No longer supported, and they don't even have the decency to edit the page to tell us so.

For anyone unaware, this extension is being sunset and does not work anymore.

Source: T316050 of Wikimedia's phabricator.

Does not work at this time. "An error has occurred: Unsupported Content-Type: application/x-www-form-urlencoded" :(

Simple functionality, works as intended & very useful. However, it's been broken for months now. Really hoping it gets brought back.

The tiny W+bookmark icon logo appears at the right end of URL in the address bar (a lousy UI idea, but… maybe a necessary lesser-evil coding decision?) But once clicked, it fails with the error "An error has occurred: Unsupported Content-Type: application/x-www-form-urlencoded". Logged out and back in to Wikipedia, no change.

Maybe needs an update to work with current (v139.0.4) Firefox? Last updated 14 months ago. Disabled Ghostery, uBlock, etc. to no avail. Might test again after FF relaunch but still expecting failure given 14 of 34 reviews say "doesn't work".

The UI was super confusing to me because I've never seen an extension that is active in the address bar like that. Functionality is pretty limited, but it does what it's supposed to do.

Appears to work as advertised. Installed the add-on while already logged in to Wikipedia, and the add-on detected that I was logged in and worked immediately. Note that you have to have reading list syncing already enabled on your mobile device.

One downside is that you can only save to your general reading list (called "Saved" on mobile and "Saved pages" on desktop browser), not any of the named/themed lists that you can create in the mobile app. You also cannot read FROM that list via this plugin, only save TO it. If you want to read from your list, you have to find it on your profile page at the Meta Wikimedia website, under "Special:ReadingLists/"

straight up does not work

This doesn't work. First I had to search reviews to find out how to use it (button in search bar), but the button requests a log in to my account. When clicked, this goes to wikipedia website which I was already logged in to. Tried logging in and out, not working. What is the point of this?

Handy for the sake of just adding something to my saved articles, but I wish I actually had access to my saved lists on desktop, both for saving articles and pulling them back up. At least it does what it says it does on the tin.

The extension allows to save a Wikipedia article to the default reading list.

But that's it, it doesn't implement any other reading list feature - a particular reading list to save the article into cannot be selected, it's not possible to remove the article from a reading list, reading lists cannot be managed or even viewed, so it's actually a "write-only" feature - you can save articles, but you cannot view them, so it's close to useless.

I'm using the reading lists to save articles I'm interested in while on a mobile phone to read and research them later while on a desktop computer. But there's unfortunately no way to access those reading lists on a desktop.

Would love the addon because the idea is great. But it doesn't even show up. :(

EDIT: its in the address bar lmao
You should make it a bit easier to see visually.

It's better than nothing. It does only one thing: add articles to your account's default reading list with a single click; you can not view or edit the contents of any reading list via desktop browser, however, since I typically want to save articles while I'm on desktop to read on my phone later when I get a spare moment, and not vice versa, this is adequate for my purposes.

Does not function the way it should.

Sehr praktisch, aber ausbaufähig!

great idea, nice to see wmf presence in amo

This is way too basic. I would like to browse/manage/edit my reading lists from the app in the browser. All you can do is add articles to an "invisible" reading list and then find them in the app

There is literally no way to view your reading list or remove entries. All you can do is click the icon to add articles to the default list.
That isn't helpful at all! Why does this even exist? Just another Wikimedia Foundation project that nobody asked for.
Do they really expect users to add entries on PC and then open the app on your phone to view or delete entries?
You already implemented the sync feature, which is far more complicated. So, why don't you go all the way and add editing and viewing to the browser extension?