Pressing quote switches focus to last tab.

[GoogleCodeExporter]

What steps will reproduce the problem?
1.  Pressing single-quote ('), or double-quote (")

What is the expected output?
None

What do you see instead?
Focus switches to last open tab.

What version of the product are you using? On what operating system?
0.5.4Build201304182100.  Windows XP.

Please provide any additional information below.
In Mouseless Browsing configuration, keys tab, I have disabled all keyboard 
shortcuts.

Client Configuration (automatically added by MLB)
OS: WINNT, Firefox 20.0.1, MLB 0.5.4Build201304182100
MLB Configuration:
mouselessbrowsing.maxIdNumber: 1000
mouselessbrowsing.idChars: 
mouselessbrowsing.keys.scrollDown: 0
mouselessbrowsing.executeInstantlyWhenIdUnique: false
mouselessbrowsing.smartPositioning: true
mouselessbrowsing.keys.scrollUp: 0
mouselessbrowsing.modifierForOpenInNewTab: 1
mouselessbrowsing.disableAutomaticPageUpdateOnChange: false
mouselessbrowsing.keys.updatePage: 0
mouselessbrowsing.disableMLB: false
mouselessbrowsing.modifierForWritableElement: 2
mouselessbrowsing.modifierForOpenInNewWindow: 3
mouselessbrowsing.keys.clearKeybuffer: 0
mouselessbrowsing.showIdsOnDemand: false
mouselessbrowsing.version: 0.5.4Build201304182100
mouselessbrowsing.styleForFrameIdSpan: position:fixed; top:0; left:0;
font-size:xx-small;line-height:130%;;
border-color:black; border-width:1px; border-style:solid;
-moz-border-radius:2px;
padding:0px 2px 0px 2px;
z-index:500;
background-color:#D6E3FE;
mouselessbrowsing.showTabIds: true
mouselessbrowsing.keys.toggleMLB: 0
mouselessbrowsing.idType: NUMERIC
mouselessbrowsing.enableImgLinkIds: true
mouselessbrowsing.exclusiveNumpad: false
mouselessbrowsing.enableOtherIds: true
mouselessbrowsing.showMlbIconInStatusbar: true
mouselessbrowsing.keys.toggleAllIds: 0
mouselessbrowsing.enableFormElementIds: true
mouselessbrowsing.toggleExlNumpadWithDoubleStrokeNumKey: true
mouselessbrowsing.enableLinkIds: true
mouselessbrowsing.debug.perf: false
mouselessbrowsing.enableFrameIds: true
mouselessbrowsing.modifierForOpenInCoolirisPreviews: -1
mouselessbrowsing.keys.blockKeyboardInputForMlb: 0
mouselessbrowsing.showKeybufferInStatusbar: true
mouselessbrowsing.keys.addSiteRule: 0
mouselessbrowsing.initOnDomContentLoaded: false
mouselessbrowsing.filterDuplicateLinks: true
mouselessbrowsing.keys.toggleEnableDisableMLB: 0
mouselessbrowsing.siteRules: <listbox 
xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul" 
id="siteRulesLB" prefid="mouselessbrowsing.siteRules" flex="1" 
disabled="false"><listhead><listheader label="URL Pattern"/><listheader 
align="center" style="display:none"/><listheader 
style="display:none"/><listheader 
style="display:none"/></listhead><listcols><listcol flex="1"/><listcol 
style="display:none"/><listcol style="display:none"/><listcol 
style="display:none"/></listcols></listbox>
mouselessbrowsing.keys.openConfig: 0
mouselessbrowsing.disableAllIds: false
mouselessbrowsing.keys.blurActiveElement: 0
mouselessbrowsing.autoExecuteDelay: 500
mouselessbrowsing.keys.openInNewWindowPostfixKey: 0
mouselessbrowsing.keys.selectLink: 0
mouselessbrowsing.executeAutomaticNew: true
mouselessbrowsing.pixelsToScroll: 150
mouselessbrowsing.keys.historyBack: 0
mouselessbrowsing.debug: false
mouselessbrowsing.styleForIdSpan: font-family:arial, sans-serif; 
font-size:xx-small; line-height:130%;
border-width:1px; border-style:solid;-moz-border-radius:2px;
padding:0px 2px 0px 2px;
vertical-align:center;
margin-left:2px; 
max-width:20px; max-height:10px;
overflow:visible;float:none;
mouselessbrowsing.keys.toggleExlusiveUseOfNumpad: 0
mouselessbrowsing.showMlbMenu: true
mouselessbrowsing.executeAutomatic: false
mouselessbrowsing.keys.openInCoolirisPreviewsPostfixKey: 1696
mouselessbrowsing.keys.historyForward: 0
mouselessbrowsing.keys.openInNewTabPostfixKey: 0

Original issue reported on code.google.com by mlipsky1...@gmail.com on 25 Apr 2013 at 9:41