I've used Adblock Plus for years, it gave me a full control of blocking of the unwanted content. Not only ads, but unwanted blocks on some sites and so on.

But during last update application have lost my personal blocking lists and removed all configuration. For now it works in fully automated mode and don't do what i really need. It's a very serious step back.
Is there any way to return to previous really great app?

p.s. Maybe app author was hacked by someone and this person replaced great app with this trash? :(

Why do developers need to "update" their software by going backward ? I'm going back to the 2.9.1 version :(

Update
Here's the link to old versions (forget 2.99)
https://addons.mozilla.org/fr/firefox/addon/adblock-plus/versions/beta?page=3#version-2.9.1.4260-beta
It will stop working with Firefox 57 https://adblockplus.org/development-builds/
I'm sick about softwares like Firefox that where poorly designed in a way that they have to rewrite part of their stuff which for a software that use plugins made by others is just wrong.

You could go nuts trying out all the so-called ad blockers. After an arduous search many moons ago I settled on AdBlock. I was happy, and why not? It worked. Then along came AdBlock +. Zowie Batman this is even better.

Cada vez pior, com anúncios aceitáveis.

That "new" interface is total disaster. For now I just simply went back to 2.9.1 version.

This is NOT an improvement! Put your ego aside and listen to your users.

Yes , I will have to find something else instead before you bring back the list of blockable elements .

Völlig unbenutzbar seit Version 3.0. Jetzt leider grottenschlecht. Bin schon auf der Suche nach Alternativen.

The new user interface is really, really bad. A massive fail. Don't tell us it's "better" because it isn't! Not for use ABP users. You may love it, but I as a user HATE IT! And I see that I'm not the only one. You're crippled the user's ability to intelligently customize ABP. WHY??? What prompted you to do this? It makes no sense. I'm really unhappy about this. Is it an "ego" thing? Because I think you, the dev, are the only person that's happy about what you've done. I guess we'll see how responsive you are the actual users.

Верните всё как было!!! Вообще стало невозможно пользоваться!

Отвратительно!
После обновления до версии 3 пользоватся стало невозможно, приходится отключать дополнение!
До этого пользовался много лет все было отлично, что нужно блокировалось легко и быстро. Теперь приходится смотреть рекламу пока исчезнет окно и только потом появится шанс заблокировать рекламу или всю страницу. Фильтры не понятные, как редактировать ссылки тоже не понятно. Складывается ощущение что дополнение купили рекламодатели и сделали все против простых пользователей.
Откатите на старый интерфейс и больше не экспериментируйте!

Bring back the list of blockable elements! I don't get why you would even consider changing an add-on that worked so well for so long. Big mistake!

About version 3.0 and up - when I had seen that I thought to myself "what da f.ck?" It is most horrible interface I have ever seen and most of usable options and features are gone. I understand the fact that You guys had been forced to migrate to WebX but this? What was the problem to recreate old functional ABP popup to looks like old popup?
Element hiding helper looks like sh1t as well. Or maybe it is not even this addon?

Beside, I have seen changelog - where is the damn fix for 2.9.1 to newly saving format? I have lost whole my filters base once (storage.js). The file was there but APB has been ignoring it. So I am slowly recreating it from scratch.

Since the latest update, Element blocker has ceased functioning on Firefox. I can go through the motions to block an element, however, nothing displays in the text box to block. It does however, still work on Opera. Which is making me believe, this is a Firefox problem, rather than an Adblock problem.

abp is dead...

Ever since they changed it to be more "newbie friendly" Adblock has been more resource intensive and it's harder to use features I used a lot (such as turning off adblock on all sites temporarily). I don't care how pretty it looks when it's not as functional. I wish I could downgrade then I would be happy again. Trying uBlock Origin as a replacement.

)

Please put the interface and control options back to the way it was, including the element hiding helper. With this new update it works just like the Chrome version which is HORRIBLE and one of the main reasons I have avoided Chrome all these years. Put it BACK PLEASE!!

Put it back exactly the way it was before all these people dump it for something else, including myself.