Firefox bookmark with input dialog: Create a new bookmark in firefox and add on this snippet as address. When clicked a dialog for a custom input will open.

Firefox bookmark for Contao CERIS quick search.js

javascript:void(location.href="http://www.contao-pool.de/ceris.html?search="+window.prompt("CERIS search:",""))

Firefox bookmark for Google quick tranlation (DE->EN)

javascript:void(location.href='http://translate.google.de/#de|en|'+window.prompt("Translate (DE->EN):",""))

Firefox bookmark for Google quick tranlation (DE-EN)

javascript:void(location.href='http://translate.google.de/#de|en|'+window.prompt("Translate (DE->EN):",""))

Firefox bookmark for Google quick tranlation (DE-EN).js

javascript:void(location.href='http://translate.google.de/#de|en|'+window.prompt("Translate (DE->EN):",""))

Firefox bookmark for Google quick tranlation (EN->DE)

javascript:void(location.href='http://translate.google.de/#en|de|'+window.prompt("Translate (EN->DE):",""))

Firefox bookmark for Google quick tranlation (EN-DE).js

javascript:void(location.href='http://translate.google.de/#en|de|'+window.prompt("Translate (EN->DE):",""))

Can also be used for each other URL that will be customized bei user input (e.g. Github issue search)

note that Firefox bookmarklets do not work in about:newtab so you have to replace it with about:blank

you can do this by setting the value of browser.newtab.url to about:blank in about:config