#17668 disabled support for "copy to clipboard" and "go to definition" context menu items in Firefox. 

Use cases

- [x] copy to clipboard (#17740)
- [x] jump to element node (blocked by Firefox bugs [1605597](https://bugzilla.mozilla.org/show_bug.cgi?id=1605597), [1609671](https://bugzilla.mozilla.org/show_bug.cgi?id=1609671), [1609677](https://bugzilla.mozilla.org/show_bug.cgi?id=1609677))
- [x] jump to function definition (blocked by Firefox bugs [1605597](https://bugzilla.mozilla.org/show_bug.cgi?id=1605597), [1609671](https://bugzilla.mozilla.org/show_bug.cgi?id=1609671), [1609677](https://bugzilla.mozilla.org/show_bug.cgi?id=1609677))
profilerPortalContainer,
              showTabBar: false,
              store,
              warnIfUnsupportedVersionDetected: true,
              viewAttributeSourceFunction: isChrome
                ? viewAttributeSourceFunction
                : null,
              viewElementSourceFunction,
            }),
          );
        };
        render();
      }
      cloneStyleTags = () => {
        const linkTags = [];
        
        for (let linkTag of document.getElementsByTagName('link')) {
          if (linkTag.rel === 'stylesheet') {
            const newLinkTag = document.createElement('link');
            
            for (let attribute of linkTag.attributes) {
              newLinkTag.setAttribute(attribute.nodeName, attribute.nodeValue);
            }
            linkTags.push(newLinkTag);
          }
        }
        return linkTags;
      };
      initBridgeAndStore();
      function ensureInitialHTMLIsCleared(container) {