It's efficient and quiet and reliable. The process of adding new scripts isn't the most clear, but otherwise you don't even feel it.

The new version is bad, some scripts are not working, others are so slow to be executed.. i wish you can just port the old version to Firefox Quantum.. i switched back to Firefox 56 just for the old version of Greasmonkey.

Userscript addon that forgot the ability to add custom userscripts? Added breaking changes to API but in order to modify my userscript to make it work again, I had to download someone else's userscript from a website then edit it and paste my script over it because there is no "Add script" button anymore. I'll fix the changes but be asking all of my users to switch to TM.

This addon is not working correctly with Firefox Quantum. There is no way to edit and save and I can not see how to add my own scripts. :(

Greasemonkey is not compatible to itself since ported to webextension (FF57).

Your argument "We have to do it this way becasue of webextension" is useless, tampermonkey and USI had it done without breaking th API!

Sorry guys but you I went over to tampermonkey and USI to keep my scripts running!

Doesn't install a single script as of the update. How to install manually is nowhere to be found. This script is useless. Using latest Greasemonkey with Firefox Quantum.

solo me facilita muchas aplicaciones de trabajo gracias

Раньше он работал идеально, но новая версия для WebExtensions просто не работает, её не нужно было выпускать, лучше бы доработали, ждем обновлений, а пока буду сидеть на Violentmonkey

Terrific, you can just customize anything on any website!

在火狐57.0上无法正常使用，具体表现为：

1、无法管理现有脚本。之前在火狐浏览器-附加组件，会有Greasemonkey管理器，可以直接管理脚本。在火狐57.0上面Greasemonkey管理器项消失，从而导致无法管理脚本

2、脚本失效。在火狐57.0上，大部分脚本失效，但在Tampermonkey上是可以正常使用的。


Greasemonkey是一个优秀的插件，我想出现这问题应该是还没更新的缘故。在还没更新之前暂时用功能一致的Tampermonkey代替使用吧

Well this is just STUPID. This new version broke pretty much all my scripts. Is there even a point to this addon anymore? Why use this and have a bunch of broken scripts when I can just download Tampermonkey which also works with FF57 AND doesn't break all my old scripts? Give me one good reason.

Spent half an hour trying to find how to install a script I've been using for years and it is now no longer working.

Developer is a lier! Yes it launches in FF 57, but there not a single script working!

There are improvements to be made and features to be recreated but the effort going in to redeveloping Greasemonkey for webextensions is for me so far successful. Some quick modifications were required to scripts that I had utilizing per user options but other than that I've had no issues.

chybaju mi stare dodatky. ako bol trh a daslie veci

Seems rushed... So far non of my scripts is working, almost no UI at all...... Other than the dropdown showing installed scripts without any customization

I appreciate the WebExtension efforts of the greasemonkey team. But now I am rating the status quo after the Quantum update, which is quite confusing. Many of my own user scripts are not available anymore. Most of them are extremely simple (e.g. getElementById an change its value). I don't know why they are not shown in the GM list. I can only edit them on the system level, but even if I comment out the complete code, the scrips are not available in GM's list. How can I import them? Where ist the "add user script" command? I guess, I shoud try Tampermonkey, instead.