How do I remap arrow keys on specific websites?

[luckycold]

I'm trying to remap h and l for left and right arrow for youtube but I get an error when I attempt to map the left and right key.

Here's the config:

env youtube host="https://www.youtube.com/"

map h runKey expect={"youtube":"<v-hyoutube>"}
mapKey <v-hyoutube> <left>

with an error saying Error: mapKey: a source key should be a single key with an optional mode id: mapKey <v-hyoutube> left.

I'm probably doing this wrong. But I thought it might also be possible that it's a limitation of trying to use the arrow keys.

[gdh1995]

There are indeed some issues in your example: 1. "mapKey" is used before "map", which means "runKey"'s expected value should only be the "key sequence" part of a "map" rule. 2. "mapKey" can not change how webpages treat pressed keys - it only affects Vimium C itself. If you want to change a current time of a video, then you may use javascript code to do so, and the 2nd line will look like: map <v-hyoutube> openUrl url="javascript:<your-code-here>" As for detailed code, there have been a few issues related, you may search in this repo.