HTMLIFrameElement.getCanGoForward()
the getcangoforward() method of the htmliframeelement is used to indicate whether it's possible to go forward in the navigation history of the browser <iframe>.
... syntax instanceofhtmliframeelement.getcangoforward() .then(function(result) { ...
... example function canmovefwd() { browser.getcangoforward().then(function(result) { if (result) { fwd.disabled = false; console.log("it's possible to navigate the history forward."); } else { fwd.disabled = true; console.log("it's not possible to navigate the history forward."); } }); } specification not part of any specification.

HTMLIFrameElement.goForward()
the goforward() method of the htmliframeelement is used to navigate forward in the browser <iframe>'s history.
... syntax instanceofhtmliframeelement.goforward(); returns void.
... examples fwd.addeventlistener('touchend',function() { browser.goforward(); }); specification not part of any specification.

goForward - Archive of obsolete content
« xul reference home goforward() return type: no return value go forward one page in the history.

goForwardGroup - Archive of obsolete content
« xul reference home goforwardgroup() not in firefox return type: no return value go forward to the next group of tabs.

canGoForward - Archive of obsolete content
« xul reference cangoforward type: boolean this read-only property is true if there is a page to go forward to in the session history and the forward button should be enabled.

tabbrowser - Archive of obsolete content
attributes autocompleteenabled, autocompletepopup, autoscroll, contentcontextmenu, contenttooltip, handlectrlpageupdown, onbookmarkgroup, onnewtab, tabmodalpromptshowing properties browsers, cangoback, cangoforward, contentdocument, contenttitle, contentvieweredit, contentviewerfile, contentwindow, currenturi, docshell, documentcharsetinfo, homepage, markupdocumentviewer, securityui, selectedbrowser, selectedtab, sessionhistory, tabcontainer, tabs, visibletabs, webbrowserfind, webnavigation, webprogress methods addprogresslistener, addtab, addtabsprogresslistener,appendgroup, getbrowseratindex, getbrowser...
...indexfordocument, getbrowserfordocument, getbrowserfortab, geticon, getnotificationbox, gettabforbrowser, gettabmodalpromptbox, goback, gobackgroup, goforward, goforwardgroup, gohome, gotoindex, loadgroup, loadonetab, loadtabs, loaduri, loaduriwithflags, movetabto, pintab, reload, reloadalltabs, reloadtab, reloadwithflags, removealltabsbut, removecurrenttab, removeprogresslistener, removetab, removetabsprogresslistener,replacegroup, selecttabatindex, seticon, showonlythesetabs, stop, unpintab attributes autocompleteenabled type: boolean set to true to enable autocomplete of fields.
... cangoforward type: boolean this read-only property is true if there is a page to go forward to in the session history and the forward button should be enabled.
...And 3 more matches

browser - Archive of obsolete content
attributes autocompleteenabled, autocompletepopup, autoscroll, disablehistory, disableglobalhistory, disablesecurity, droppedlinkhandler, homepage, showcaret, src, type properties accessibletype, cangoback, cangoforward, contentdocument, contentprincipal, contenttitle, contentvieweredit, contentviewerfile, contentwindow, currenturi, docshell, documentcharsetinfo, homepage, markupdocumentviewer, messagemanager, preferences, securityui, sessionhistory, webbrowserfind, webnavigation, webprogress methods addprogresslistener, goback, goforward, gohome, gotoindex, loaduri, loaduriwithflags, reload, reloadwithflag...
... cangoforward type: boolean this read-only property is true if there is a page to go forward to in the session history and the forward button should be enabled.
...most of its methods are callable directly on the element itself, such as goback and goforward.
... goforward() return type: no return value go forward one page in the history.

nsIWebNavigation
method overview void goback void goforward void gotoindex( in long index ) void loaduri(in wstring uri , in unsigned long loadflags , in nsiuri referrer , in nsiinputstream postdata, in nsiinputstream headers) void reload(in unsigned long reloadflags) void stop(in unsigned long stopflags) constants load flags constant value description load_flags_mask 65535 this f...
... cangoforward prbool indicates if the object can go forward.
... void goback( ); goforward() tells the object to navigate to the next session history item.
... void goforward( ); gotoindex() tells the object to navigate to the session history item at a given index.

Index - Archive of obsolete content
1245 goforward xul methods, xul reference no summary!
... 1246 goforwardgroup xul methods, xul reference no summary!
... 1368 cangoforward xul properties, xul reference no summary!

Index - Archive of obsolete content
514 goforward xul methods, xul reference no summary!
... 515 goforwardgroup xul methods, xul reference no summary!
... 637 cangoforward xul properties, xul reference no summary!

Using the Browser API
ple browser, we've written some basic javascript (see the full javascript listing.) wiring up the back and forward buttons early on in the code we implement two simple event listeners to move the browser back and forward in history when the relevant buttons are pressed: back.addeventlistener('touchend',function() { browser.goback(); }); fwd.addeventlistener('touchend',function() { browser.goforward(); }); the functions can be handled using the browser api htmliframeelement.goback() and htmliframeelement.goforward() methods.
...n canmovebwd() { var request = browser.getcangoback(); request.onsuccess = function() { if (request.result) { back.disabled = false; console.log("it's possible to navigate the history backward."); } else { back.disabled = true; console.log("it's not possible to navigate the history backward."); } } } function canmovefwd() { var request = browser.getcangoforward(); request.onsuccess = function() { if (request.result) { fwd.disabled = false; console.log("it's possible to navigate the history forward."); } else { fwd.disabled = true; console.log("it's not possible to navigate the history forward."); } } } so here we have functions to detect whether we can navigate forwards/backwards in the history at any point.
... these use htmliframeelement.getcangoback() and htmliframeelement.getcangoforward(), which return a boolean defining whether backward/forward navigation is possible at this point in the history.

nsISHistoryListener
method overview boolean onhistorygoback(in nsiuri abackuri); boolean onhistorygoforward(in nsiuri aforwarduri); boolean onhistorygotoindex(in long aindex, in nsiuri agotouri); void onhistorynewentry(in nsiuri anewuri); boolean onhistorypurge(in long anumentries); boolean onhistoryreload(in nsiuri areloaduri, in unsigned long areloadflags); methods onhistorygoback() called when navigating to a previous session history entry, for example due to an nsiwebnavigation.goback() ...
...onhistorygoforward() called when navigating to a next session history entry, for example due to an nsiwebnavigation.goforward() call.
... boolean onhistorygoforward( in nsiuri aforwarduri ); parameters aforwarduri the uri of the session history entry being navigated to.

Browser API
htmliframeelement.getcangoforward() indicates whether it's possible to navigate forward.
... htmliframeelement.goforward() changes the location of the <iframe> for the next location in its browsing history.

Chapter 3: Introduction to XUL—How to build a more intuitive UI - Archive of obsolete content
functions like back, forward, reload can all be called using the goback(), goforward(), and reload() methods.

Methods - Archive of obsolete content
visiblerow getindexofitem getitematindex getnextitem getnotificationbox getnotificationwithvalue getnumberofvisiblerows getpagebyid getpreviousitem getresultat getresultcount getresultvalueat getrowcount getsearchat getselecteditem getsession getsessionbyname getsessionresultat getsessionstatusat getsessionvalueat getstring goback gobackgroup godown goforward goforwardgroup gohome goto gotoindex goup hidepopup increase increasepage insertitem insertitemat invertselection loadgroup loadonetab loadtabs loaduri loaduriwithflags makeeditable movebyoffset moveto movetoalertposition onsearchcomplete ontextentered ontextreverted openpopup openpopupatscreen opensubdialog openwindow preferenceforelement ...