Until WayScript adds Pushbullet, you can use the snippet of code utilizing Pushbullet API in the Python module to get your notifications sent to all devices.
We are going to use simple Python code, FreeForexAPI, and Wayscript service to get an update every day. All for free
iMacros does offer it's own browser which is light on resource, but it is not optimal if you are new and want to run JavaScript code with it. Here's a free alternative
Using a forked browser that reduces usage of system resource, you get more out of the browser and automate things better. Here's a browser you can use for resource friendly usage of iMacros.