@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");
/*AGENT_SHEET*/
@-moz-document url("chrome://browser/content/browser.xul"),
    url("chrome://browser/content/bookmarks/bookmarksPanel.xul"),
    url("chrome://browser/content/history/history-panel.xul") {
#sidebar-box {
    position: fixed !important;
    width: 2px !important;
    height: auto !important;
    top: 90px !important; /*Отступ сверху*/
    left: 0 !important;
    bottom: 0px !important;
    -moz-appearance: none !important;
    border: 1px solid transparent !important;
    transition-timing-function: step-start !important;
    transition-delay: .6s !important;
    transition-property: width, border-color !important;
    z-index: 5 !important;
    padding: 0 !important;
    margin: 0 !important;
}

#sidebar-box:-moz-locale-dir(rtl) {
    right: 0 !important;
    left: auto !important;
}

#sidebar-box > * {
    visibility: collapse !important;
    transition-timing-function: step-start !important;
    transition-delay: .6s !important;
    transition-property: visibility !important;
}

#main-window[sizemode="maximized"] #sidebar-box {
    top: 82px !important;  /*Отступ сверху*/
}

#main-window[sizemode="fullscreen"] #sidebar-box {
    top: 0px !important;  /*Отступ сверху*/
}

page#bookmarksPanel, page#history-panel, #sidebar, #sidebar-header, tree#historyTree, tree#bookmarks-view {
    -moz-appearance: none !important;
    border: none !important;
}

#sidebar-box:hover {
    width: 40% !important; /*Ширина*/
    border-color: Gray !important;
    transition-delay: .2s !important;
} 

#sidebar-box:hover > * {
    visibility: visible !important;
    transition-delay: .2s !important;
}

#sidebar-splitter {
    display: none !important;
}

#sidebar-header {
    font-size: 9pt !important;
    width: 100% !important;
    height: 25px !important;
    border: none !important;
    background-color: -moz-Dialog !important;
    color: -moz-DialogText !important;
    text-shadow: none !important;
}
 
#sidebar {
    width: -moz-available !important;
    min-width: 0 !important;
    max-width: none !important;
    height: calc(100% - 25px) !important;
    padding: 1px !important;
    margin: 0 !important;
    box-sizing: border-box !important;
}
}

#browser-border-start {
    display: -moz-box !important;
    min-width: 5px !important;
    position: fixed !important;
    top: 60% !important; /*Отступ сверху*/
    left: 0 !important;
    bottom: 0px !important;
    background: none !important;
    border: none !important;
    z-index: 6 !important;
}        

#browser-border-end {
    display: -moz-box !important;
    min-width: 5px !important;
    position: fixed !important;
    top: 60% !important; /*Отступ сверху*/
    right: 0 !important;
    bottom: 0px !important;
    background: none !important;
    border: none !important;
    z-index: 6 !important;
}  
        
#browser-border-start:-moz-locale-dir(rtl) {
    right: 0 !important;
    left: auto !important;
}

#browser-border-end:-moz-locale-dir(rtl) {
    left: 0 !important;
    right: auto !important;
}

var BorderStartEnd = {
    BackUndoTabs: function(event) {
        if(event.shiftKey) {
            return;
        } if (event.button == 0) {
            BrowserBack(event);
        } else if (event.button == 2) {    
            undoCloseTab();
        }
    },
    OpenCloseTabs: function(event) {
        if(event.shiftKey) {
            return;
        } if (event.button == 0) {
            if (getBrowser().mTabContainer.childNodes.length == 1) {
                getBrowser().addTab(BROWSER_NEW_TAB_URL);
            }
            getBrowser().removeCurrentTab();
        } else if (event.button == 2) {    
            BrowserOpenNewTabOrWindow(event);
        }
    }
};
document.getElementById("browser-border-start").addEventListener("click", BorderStartEnd.BackUndoTabs, false);
document.getElementById("browser-border-end").addEventListener("click", BorderStartEnd.OpenCloseTabs, false);
this.onDestroy = function() {
     document.getElementById("browser-border-start").removeEventListener("click", BorderStartEnd.BackUndoTabs, false);
     document.getElementById("browser-border-end").removeEventListener("click", BorderStartEnd.OpenCloseTabs, false);
};