Firefox OS Simulator is a test environment for Firefox OS. Use it to test your apps in a Firefox OS-like environment that looks and feels like a mobile phone.
The simulator currently runs b2g using a profile directory stored directly under its install root. There are several problems with this:
1) Changing the modification time of an extension's install root has been known to cause problems with the add-on manager in the past.
2) Any time a file within an extension install root is modified, the startup cache is flushed, and every time the simulator runs, files are modified.
3) At the moment, the add-on manager stats every file in an unpacked extension at startup. Given the number of files in a b2g profile, it has a significant performance cost.
We also have a policy on AMO that forbids add-ons from modifying files within their install root.
mykmelez
commented
10 years ago
The simulator currently runs b2g using a profile directory stored directly under its install root. There are several problems with this:
1) Changing the modification time of an extension's install root has been known to cause problems with the add-on manager in the past.
2) Any time a file within an extension install root is modified, the startup cache is flushed, and every time the simulator runs, files are modified.
3) At the moment, the add-on manager stats every file in an unpacked extension at startup. Given the number of files in a b2g profile, it has a significant performance cost.
We also have a policy on AMO that forbids add-ons from modifying files within their install root.