1923547 - Extension API to Disable JIT Compilation

Status: UNCONFIRMED

(Core :: JavaScript Engine: JIT, enhancement, P5)

Description

[Bobzilla]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:133.0) Gecko/20100101 Firefox/133.0

Steps to reproduce:

Request for the addition of an API in the WebExtensions framework to allow developers to disable Just-In-Time (JIT) compilation for specific scripts or contexts. This feature would enable better control over performance and security for extensions that require precise execution environments, particularly for security-focused applications or for debugging purposes.

Actual results:

Currently, there is no such API available in the WebExtensions framework, limiting developers' ability to manage script execution environments effectively.

Expected results:

An API method (e.g., browser.runtime.disableJIT()) that allows developers to toggle JIT compilation on or off for their extension’s scripts, with appropriate documentation and usage guidelines.

Comment 1

[BugBot [:suhaib / :marco]]

The Bugbug bot thinks this bug should belong to the 'Core::JavaScript Engine: JIT' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.