# Submitting issues

**Must read:** [How to Report Bugs Effectively](http://www.chiark.greenend.org.uk/~sgtatham/bugs.html).

### Before you submit

1. Submit **bugs/issues only**.
    - Bugs occur, I will fix them.
1. Do **NOT**:
    - Submit design ideas.
    - Submit feature requests.
    - Submit "revolutionary ideas".
    - Use issues as replacement for threads on a bulletin board.
    - Any such issue will be closed without comment.
1. Make sure your issue [hasn't already been fixed in a recent release](https://github.com/gorhill/uBlock/releases).
1. Verify that the issue does **not** occur with uBlock disabled.
    - If it still occurs with uBlock disabled, it's probably not an issue with uBlock.
1. Verify that the issue is not related to a 3rd-party filter lists.
    - If it is the case, report to the list maintainer(s).
    - It helps to also test with Adblock Plus, with **same** filter lists.
        - If issue also occurs with ABP, it's most likely a filter list issue.
1. Any issue opened with no effort to provide the required details will be closed without comment.

---

### What to include


To help diagnose and fix the bug/issue, please always, **always**, **ALWAYS** include the following in your report:

* A clear list of steps to reproduce the problem
  * **Always include a URL**, _even_ if "it happens everywhere". Just do it.
* Symptoms of the issue
  * Describe what you observe and consider broken behavior; this is what we'll be looking for after executing the steps
  * Example: video doesn't start playing, page layout broken
* A screenshot of **any** of uBlock's preferences that differ from the defaults
  * This includes a whitelisted website, enabled/disabled filter list, anything
  * Please do include everything different from the defaults whether or not it seems relevant to your issue
* The version of uBlock you're having the issue with; you can find this in [uBlock's popup UI](https://github.com/gorhill/uBlock/wiki/Quick-guide:-popup-user-interface)
  * Example: `uBlock 0.9.0.0`
* The browser you're using and its version
  * Examples: `Firefox 36`, `Chrome 41.0.2272` 
* The OS you're using and its version
  * Examples: `Windows 8.1`, `Linux Mint 17.1`
* A list of other extensions you have installed
  * Tip: try disabling them and see if your issue still occurs

Otherwise, we've noticed that a lot of **your** time (and the developers') gets thrown away on exchanging back and forth to get this information.