This iMacros script will automatically like multiple YouTube videos with a click of a button. Watch the video above to see how it works then try it yourself with the script below.
To add the script to your iMacros add-on follow the instructions on this post. Let me know if you have any questions with a comment below.
SCRIPT:
TAB T=1
TAG POS={{!LOOP}} TYPE=A ATTR=CLASS:yt-simple-endpoint<SP>style-scope<SP>ytd-video-renderer EXTRACT=HREF
SET !VAR1 {{!EXTRACT}}TAB OPEN
TAB T=2
URL GOTO={{!VAR1}}
WAIT SECONDS=2
TAG POS=1 TYPE=yt-formatted-string ATTR=CLASS:style-scope<SP>ytd-toggle-button-renderer<SP>style-text
WAIT SECONDS=2TAB CLOSE