FF5 in debug mode: Some events are not received

[ect]

Some simple ClickHandlers do not work any more with Firefox 5 in debug mode. Still, compiled mode works as expected.

Any idea of how to workaround this within FF5? This really slows down development.

SmartGWT: Tested with 2.4 and with the latest 2.5
GWT: 2.2.0
Browser: Firefox 5.0
GWT browser plugin: 1.0.10401 (22/07/11)

Example below: There are two ImgButtons, one plain (the left one) and one wrapped in a CanvasItem within a form (the right one). When running in debug mode, only the plain one receives the onClick message, in compiled mode both receive the message as expected.

import com.google.gwt.core.client.EntryPoint;
import com.smartgwt.client.types.SelectionType;
import com.smartgwt.client.util.SC;
import com.smartgwt.client.widgets.ImgButton;
import com.smartgwt.client.widgets.events.ClickEvent;
import com.smartgwt.client.widgets.events.ClickHandler;
import com.smartgwt.client.widgets.form.DynamicForm;
import com.smartgwt.client.widgets.form.fields.CanvasItem;
import com.smartgwt.client.widgets.layout.HLayout;

public class Test implements EntryPoint {

    public void onModuleLoad() {
        HLayout hLayout = new HLayout();
        
        DynamicForm form = new DynamicForm();  
        form.setID("testForm");  
        
        CanvasItem canvasItem = new CanvasItem();
        ImgButton imgButton = createButton("Form button clicked", "Form button");        
        canvasItem.setCanvas(imgButton);
        canvasItem.setShowTitle(false);
        
        form.setFields(canvasItem); 
        form.setLeft(100);
        
        hLayout.addChild(form);
        hLayout.addChild(createButton("Plain img button clicked", "Plain button"));
        
        hLayout.draw();
    }
    
    private ImgButton createButton(final String clickText, String tooltip) {
        final ImgButton imgButton = new ImgButton();
        
        imgButton.setTooltip(tooltip);
        imgButton.setShowTitle(false);
        imgButton.setShowRollOver(true);
        imgButton.setShowDown(true);
        imgButton.setSrc("[SKIN]/ImgButton/button.png");
        imgButton.setSize(18);
        imgButton.setActionType(SelectionType.BUTTON);
        imgButton.addClickHandler(new ClickHandler() {            
            @Override
            public void onClick(ClickEvent event) {
                SC.say(clickText);
            }
        });   
        return imgButton;
    }

}

[ect]

Works again!

After testing for some hours with different browsers/plugins/operating systems it is solved. I have completely removed and then readded the gwt developer plugin to the browser, then it worked again. Seems like after updating FF from 4.0.1 to 5 the developer plugin had some problems.