Bugzilla

**Affected versions**
* 66.0b7, 67.0a1 (2019-02-11)

**Affected platforms**
* Windows 8.1, Windows 10, Ubuntu 16.04;

**Steps to reproduce**
1. Launch Firefox;
2. Access any pdf file [like this](http://mozilla.github.io/pdf.js/web/compressed.tracemonkey-pldi-09.pdf);
3. Click on the Menu button;
4. Click on the print option (to open the print preview);
5. Right Click on the page(s);

**Expected result**
* Context menu is opened near the mouse;

**Actual result**
* Context menu is opened way off;

**Regression range**
* will provide a range asap;

**Additional notes**
* attached a screenshot with the issue, right click was executed where the epic red x is placed;
* macOS 10.13 did not seem to reproduce this issue

**Affected versions**
* 60.0.1.esr, 65.0.1, 66.0b7, 67.0a1 (2019-02-11);

**Affected platforms**
* Windows 8.1, Windows 10, Ubuntu 16.04;

**Steps to reproduce**
1. Launch Firefox;
2. Access any pdf file [like this](http://mozilla.github.io/pdf.js/web/compressed.tracemonkey-pldi-09.pdf);
3. Click on the Menu button;
4. Click on the print option (to open the print preview);
5. Right Click on the page(s);

**Expected result**
* Context menu is opened near the mouse;

**Actual result**
* Context menu is opened way off;

**Regression range**
* not a regression, the issue appeared with the implementation of _ the right click triggerering the context menu;
* Pre-patch: 2014-11-06;
* First bad: 2014-11-07;
* Pushlog URL: [link](https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=5dde8ea48fef&tochange=b62ccf3228ba);

**Additional notes**
* attached a screenshot with the issue, right click was executed where the epic red x is placed;
* macOS 10.13 did not seem to reproduce this issue.