Firefox – Changing saved passwords in Firefox

Make a bookmark with the following code. You click on the bookmark before you login to a site. Firefox will now allow you to save the password. Any Microsoft property won't allow you to save the password.

javascript:(function(){var%20ca,cea,cs,df,dfe,i,j,x,y;function%20n(i,what){return%20i+"%20"+what+((i==1)?"":"s")}ca=cea=cs=0;df=document.forms;for(i=0;i<df.length;++i){x=df[i];dfe=x.elements;if(x.onsubmit){x.onsubmit="";++cs;}if(x.attributes["autocomplete"]){x.attributes["autocomplete"].value="on";++ca;}for(j=0;j<dfe.length;++j){y=dfe[j];if(y.attributes["autocomplete"]){y.attributes["autocomplete"].value="on";++cea;}}}alert("Removed%20autocomplete=off%20from%20"+n(ca,"form")+"%20and%20from%20"+n(cea,"form%20element")+",%20and%20removed%20onsubmit%20from%20"+n(cs,"form")+".%20After%20you%20type%20your%20password%20and%20submit%20the%20form,%20the%20browser%20will%20offer%20to%20remember%20your%20password.")})();

For completeness, you can manage credentials at the command line or in batch script with cmdkey.exe (located in %windir%\system32).

For example, to add (or update) the credentials on server.domain.tld:

cmdkey.exe /add:server.domain.tld /user:username /pass:password

or for the entire domain:

cmdkey.exe /add:*.domain.tld /user:username /pass:password

/user can also take domain\username or username@domain

Instead of opening Windows Vault you could run a simple batch script that would prompt you for your new password:

set /p pw=Enter your new password:
cmdkey.exe /add:*companydomain.tld /user:myusername /pass:%pw%