The addon page say's it's OpenSource (under MPL2). But I can't seem to find it on GitHub or alike. I'd like to contribute some improvements to the extension, can you please let me know how I can do so/get in touch with you? Thanks!

UPD: 2020-12-28: pushed a snapshot of current code to https://github.com/Stvad/link-preview . Will explore from there. Thanks for developing this in a first place!

第一，反应很慢，鼠标到一个链接上之后要等待一至数秒钟才会弹出插件图标。第二，很多时候插件并不会弹出来，要把鼠标移开并再放到链接上尝试。第三，插件打开后，鼠标在任何的链接上都会立刻预览该链接，这导致预览页面意外变化，另外由于预览页面挡住了右侧，导致原网页右侧的链接也不能使用此方法预览，这样一个设计暂时是无用的。第四，我既然选择了在新标签页打开预览链接，那么预览窗口就应该关闭了，结果它还在。总的来说，这个插件的体验并不好，不如不装。

CoolPreviews is BACK Great extension.

Very nice, could you try to fix google news links?

Pure happyness ! CoolPreviews is BACK ! at last ! Mr Lecron, THANKS !

Only link preview I found that worked on any site.

The is THE greatest add on ever. Ok, possibly overstated, But it is one of the reasons I use Firefox over Chrome. Firefox also crushes Chrome now in many ways, but still, I love this add on!

Coolpreviews was one of the best add-ons ever. I looked a lot and never found anything close and had given up hope. Simple Link Preview is a close replica. Yes, its basic ie simple, yes there aren't any ways to customize it, HELL YES! it pops up most links in a preview window to get a quick glimpse (Maybe some links / pages don't support it so not blaming Simple Link.) A huge thanks to the developer / team on putting this out there. Its a very nice improvement in my browsing experience. TY!

Thank you Lecron for filling the massive gap since the demise of CoolPreviews.

I understand that its is in early development, but it does not work properly with eBay, but perfectly usable most of the time.

Many thanks again

Great concept, and this addon does work, but like others have said, it badly needs some customization options, as it hardly has any avail.
Should be able to select desired time frame of when preview opens on all links, or if do not want preview to open. This app opens all over the pages,any time just briefly scroll over links, so you have to keep closing undesired previews, which gets very frustrating to deal with every day, so had to Disable this addon for now. It also does not work on many links still.
Also, should be able to select desired preview window size, and quickly Rt or Lt Click out of preview. Great app, but needs improving, more custom options asap.

I was using coolpreviews but that got shutdown, but this one is almost similiar. is this open source,as well.

I was looking for an app like this for long time after they discontinues coolpreviews my favor app
thank you