RegExp Search and Highlight

I both love and hate this extensions. Many things can go wrong with it, but it's the only one that does exactly what I want and can be refreshed without reloading the page. I can deal with not being able to change the default profile or it randomly changing certain expressions when you open the setup, but there is one issue that makes it nearly unusable: it will stop working randomly, does not refresh, does not show as active. I need to keep re-installing it to keep using it.

Horrible user interface. I was waiting for a popup menu to ingress the RegExp but you have to configure a profile in another panel of this extension

2018-09-10 Chrome 66.0.3359.170 32bit: After defining one new profile, and then deleting it, it's stuck and you can't set/choose the "Default" profile anymore. You have to again redefine a profile besides "Default". Editing "Default" profile doesn't save changes in URL match section. Hmmm, I can't add a URL match in my profile, a popup says each time I press OK: "Please fill inputs for adding regexp item.". The workflow for using it is described in the first screenshot, I had not understood ... Show more

Best extention!