Simple and working wonderfully.

A very simple yet useful addon. You simply copy a bunch of links from anywhere, and just click Paste and Go inside the browser, and all your links are opened. Its like magic. Also, no special bs permissions needed. Thank you dev for this gem.

probably best one out there for firefox. has a keyboard shortcut + toolbar icon.
as of july 2020 still works on version 60.0.2 too.

Tabs are open in reverse order when "browser.tabs.insertAfterCurrent" is true.

I like the shortcut which makes it feel like part of native Firefox: ctrl(or cmd)+shift+v (when the address bar is focused).

Sometimes takes time to open paste URL in new tab

Great add-on. All browsers should have this function.

I miss having a paste and search button. Is there any way you could get this add on to use default search on paste if no url scheme is used? Or i would even settle for another button. thanks.

doesn't work

UPDATE: (Jan. 20, 2018)
I received a warning from my AVAST malware anti-virus that said this add-on (Multiple Past and Go Button) may track everything you do online. It may be a false positive, but perhaps the author can comment. (The plugin should only have access to the URL's you paste from your clipboard. That's what may be considered "tracking" by Avast, in which case it is not an issue. However, if the author transmits your data over the internet, or keeps your data in his private database, then that is an issue and a violation of privacy.)

As of Nov. 2017, v57 (Quantum), existing Firefox addons can EITHER copy OR paste, not both ( Until someone develops an addon that can do both). Thus we must find a replacement for Copy URLs Expert, or Copy All URLs.

SOME ALTERNATIVES
Here is what is working for me, now...

(1) Copy All Tab Urls WE (Web Extension)
by Michele Pezza
https://addons.mozilla.org/en-US/firefox/addon/copy-all-tab-urls-we
> This only copies URL's

Combined with... PASTE URL's

(2) Open Multiple URL's
by tp12
https://addons.mozilla.org/en-US/firefox/addon/open-multiple-urls/

pastego (by Jeremy)の代わりを探してこのアドオンに出会えました。
希望通りの動作をしてくれるので、自分の用途では理想的なアドオンです。

文章・表計算ファイルなどからURLが混じった部分をクリップボードにコピーして、
このアドオンのアイコンボタンをクリックするだけで、
URLが複数でもちゃんと抜き出して一気に全部開いてくれます。
httpからhを抜いたような文字列も開いてくれました。
ブラウジングでも複数のリンクを一度に開きたいときは大活躍です。
5ボタンマウスのボタンのひとつにコピーを割り当ててるので、
ドラッグしてコピーのクリック、カーソル移動、このアドオンのアイコンをクリック、
という非常に簡便な動作で一発で全てのURLを開いています。
慣れた動作で複数まとめて一気に開くので、手数が減らせて本当に有り難いです。
星5つでは足りません。
是非、クリップボードの文字列を検索サイトで開くボタンのアドオンも
作って戴けたらと心から願っています。

To answer your questions
I'm running Firefox 55.0.3

As for URLs there are many . Here are a few examples.

A list of zippyshare URL's on numerous occasions
A mixed list of music and storage sites (i.e. youtube, mediafire, zippyshare, discogs) etc

I even just tried the list of sites I have in my menu bar (ebay, amazon,imdb) etc . It failed too.

This is a generic problem and not url specific and it occurred when your add-on changed from 'legacy'.