Bugzilla

*Thank you for helping make Firefox better. If you are reporting a defect, please complete the following:* 

## What were you doing?

*Please tell us what site you were on, and what steps led to the error you are reporting* 

1. *First step*
2. *Second step*
3. *…*

## What happened?

*What, if any, error messages did you see? Did the browser crash? Screenshots or screen recordings can be attached to this report and are helpful in isolating and replicating the bug.*

## What should have happened?

 *Was was the expected result? ("Not crashing" may be a valid answer.)*

## Anything else we should know? 

*Do you have extensions installed? You can also go to `about:support` in another window or tab and attach the report it generates to this bug.*

Steps:

- Have the OBT and fission-compatible highlighter prefs ON.
- Open Firefox with 2 tabs on 2 different websites.
- Open the OBT and start the picker.
- Focus the browser window and pick a node from the first tab's website.
- Switch to the second tab.
- In the OBT, start the picker again.
- Focus the browser window and try to pick an element from the second tab's website.

Bug:

The highlighter isn't visible anymore as you hover over elements in the second tab.