local tx = acGetWindowLeft(nil, gsx, gsy)
local ty = acGetWindowTop(nil, gsx, gsy)
local tcy = acGetWindowBottom(nil, gsx, gsy)
acMouseClick(tx+8, (tcy-ty)-((tcy-ty)/2), 2, 1, 1)
acMouseMove(gex, gey)
acSendKeys("^t")

quote:

---

local tx = acGetWindowLeft(nil, gsx, gsy)
local ty = acGetWindowTop(nil, gsx, gsy)
local tcy = acGetWindowBottom(nil, gsx, gsy)
acMouseClick(tx+8, (tcy-ty)-((tcy-ty)/2), 2, 1, 1)
acMouseMove(gex, gey)
acSendKeys("^t")

Of course, if there happens to be an ad or link in that spot, it'll click it; but I doubt that would happen often, if ever.

---

function firefox_before_action(x, y)

  local hwndTarget = acGetWindowByPoint(x, y)
  local MessageID  = 0x020A -- WM_MOUSEWHEEL
  local wParamDown = 0xFFFF0000 -- WHEEL_DELTA
  local wParamUp   = 0x00010000 -- WHEEL_DELTA
  local lParam     = bit32.lshift(y,16)+x  -- pointer position

  acPostMessage(hwndTarget, MessageID, wParamDown, lParam) -- caught by Firefox
  acPostMessage(hwndTarget, MessageID, wParamUp, lParam)   -- negate the scroll above
  acSendKeys("%{F16}")  -- hide popup menus by the Alt key (F16 is a dummy key)

end

firefox_before_action(gsx, gsy)  -- Call First
acSendKeys("^{TAB}") -- Next Tab

(working folder):
install.rdf
chrome.manifest
/chrome/content/getBackFocusFromPlugin.xul
                getBackFocusFromPlugin.js

<?xml version="1.0"?>

<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
  
  <Description about="urn:mozilla:install-manifest">
  
    <em:id>sanuki.udon@kagawa</em:id>
    <em:version>1.0</em:version>
    <em:type>2</em:type>
    
    <!-- Target Application this extension can install into, 
         with minimum and maximum supported versions. --> 
    <em:targetApplication>
      <Description>
        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
        <em:minVersion>0</em:minVersion>
        <em:maxVersion>99</em:maxVersion>
      </Description>
    </em:targetApplication>
    
    <!-- Front End MetaData -->
    <em:name>Get Back Focus from Plugin</em:name>
    <em:description>
      <![CDATA[
This Add-on gets back focus from plugins.
      ]]>
    </em:description>
    <em:creator>Sanuki Udon</em:creator>
    
  </Description>
  
</RDF>

content getBackFocusFromPlugin chrome/content/
overlay chrome://browser/content/browser.xul chrome://getBackFocusFromPlugin/content/getBackFocusFromPlugin.xul

<?xml version="1.0"?>

<overlay id="getBackFocusFromPlugin"
     xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
  
  <script type="application/x-javascript" src="chrome://getBackFocusFromPlugin/content/getBackFocusFromPlugin.js" />
  
</overlay>

Components.utils.import("resource://gre/modules/Services.jsm");

window.addEventListener("wheel", function(aEvent) {

  // console.log("deltaY: " + aEvent.deltaY);
  if ( ( 1.0 > aEvent.deltaY ) && ( aEvent.deltaY > 0.0 ) ) {

    var focusedElement = Services.focus.focusedElement;
    var focusedWindow = focusedElement ? Services.focus.focusedWindow : content;

    if (focusedWindow == window) {
      Services.focus.clearFocus(focusedWindow);
      Services.focus.setFocus(focusedElement, Services.focus.FLAG_NOSCROLL);
    } else {
      Services.focus.focusedWindow = window;
      if (focusedElement && focusedElement.hasRunningPlugin) {
        Services.focus.clearFocus(focusedWindow);
      }
      Services.focus.focusedWindow = focusedWindow;
    }

  }

});

quote:

---

Originally posted by Udon

For Firefox Users:
.................................................
..................................................
[/blue][/code]

---

quote:

---

hello,
I followed your instructions but it didn't work on my firefox 33.1.1 on windows8.1x64 , nothing happened.

---

quote:

---

Originally posted by Cerberus

I will try to keep at least the version number up to date, because Mozilla forced me to set the maximum version of Firefox that it can be installed on to 46.0. But, if the extension should break otherwise, I wouldn't know how to fix it...

---

<?xml version="1.0"?>

<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
     xmlns:em="http://www.mozilla.org/2004/em-rdf#">

  <Description about="urn:mozilla:install-manifest">

    <em:id>sanuki.udon@kagawa</em:id>
    <em:version>2.0</em:version>
    <em:type>2</em:type>
    <em:bootstrap>true</em:bootstrap>
    <em:multiprocessCompatible>true</em:multiprocessCompatible>

    <!-- Target Application this extension can install into,
         with minimum and maximum supported versions. -->
    <em:targetApplication>
      <Description>
        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
        <em:minVersion>44.0</em:minVersion>
        <em:maxVersion>47.0</em:maxVersion>
      </Description>
    </em:targetApplication>

    <!-- Front End MetaData -->
    <em:name>Get Back Focus from Plugin</em:name>
    <em:description>
      <![CDATA[
      ]]>
    </em:description>
    <em:creator>Sanuki Udon</em:creator>

  </Description>

</RDF>

const {
  classes: Cc,
  interfaces: Ci,
  manager: Cm,
  results: Cr,
  utils: Cu
} = Components;

Cu.import("resource://gre/modules/Services.jsm");

const SHUTDOWN_MSG = "GetBackFocusFromPlugin:Shutdown";

const DATA_URI_PREFIX = "data:,Components.utils.import('";
const DATA_URI_SUFFIX = "');init(this);";

let path = __SCRIPT_URI_SPEC__.replace("bootstrap.js", "frameScript.js");
let url = path + "?" + Math.random();
let dataURI = DATA_URI_PREFIX + url + DATA_URI_SUFFIX;

function startup(aData, aReason) {

  Services.mm.loadFrameScript(dataURI, true);

}

function shutdown(aData, aReason) {

  if (aReason == APP_SHUTDOWN) {
    return;
  }

  Services.mm.removeDelayedFrameScript(dataURI);
  Services.mm.broadcastAsyncMessage(SHUTDOWN_MSG);

}

function install(aData, aReason) {}
function uninstall(aData, aReason) {}

const EXPORTED_SYMBOLS = ["init"];

const {
  classes: Cc,
  interfaces: Ci,
  manager: Cm,
  results: Cr,
  utils: Cu
} = Components;

Cu.import("resource://gre/modules/Services.jsm");

const SHUTDOWN_MSG = "GetBackFocusFromPlugin:Shutdown";

function wheelListener(aEvent) {

  if (1.0 > aEvent.deltaY && aEvent.deltaY > 0.0
  ||  0.0 > aEvent.deltaY && aEvent.deltaY > -1.0) {
    aEvent.stopPropagation();
  } else {
    return;
  }

  if (1.0 > aEvent.deltaY && aEvent.deltaY > 0.0) {

    let focusedWindow = {};
    let focusedElement = Services.focus
      .getFocusedElementForWindow(this.content, true, focusedWindow);

    focusedWindow = focusedWindow.value;

    if (focusedElement && focusedElement.hasRunningPlugin) {
      Services.focus.clearFocus(focusedWindow);
    }
    Services.focus.focusedWindow = focusedWindow;

  }

}

function shutdownListener(aMessage) {
  uninit(this);
}

function unloadListener(aEvent) {
  uninit(this);
}

function init(aScope) {
  aScope.addEventListener("wheel", wheelListener, true);
  aScope.addEventListener("unload", unloadListener);
  aScope.addMessageListener(SHUTDOWN_MSG, shutdownListener);
}

function uninit(aScope) {
  aScope.removeEventListener("wheel", wheelListener, true);
  aScope.removeEventListener("unload", unloadListener);
  aScope.removeMessageListener(SHUTDOWN_MSG, shutdownListener);
}