(function() {
  function remove_findbar_matches(label) {
    if (!label) return;

    // Remove the Fluent l10n ID so Firefox's translation engine stops overwriting text
    if (label.hasAttribute("data-l10n-id")) {
      label.removeAttribute("data-l10n-id");
    }

    // Read the match counts directly from Firefox's internal l10n arguments
    let rawArgs = label.getAttribute("data-l10n-args");
    if (rawArgs) {
      try {
        let args = JSON.parse(rawArgs);
        if (args && args.current !== undefined && args.total !== undefined) {
          let text = `${args.current} of ${args.total}`;
          if (args.limit && args.total > args.limit) {
            text = `${args.current} of >${args.limit}`;
          }
          if (label.textContent !== text) {
            label.textContent = text;
          }
        }
      } catch (e) {
        if (label.textContent.includes(" matches")) {
          label.textContent = label.textContent.replace(/\s*matches\s*/gi, "");
        }
      }
    }
  }

  // Observe attribute updates on the count label
  let labelObserver = new MutationObserver((mutations) => {
    for (let mut of mutations) {
      if (mut.type === "attributes") {
        remove_findbar_matches(mut.target);
      }
    }
  });

  function attachToFindbar(findbar) {
    let label = findbar.querySelector(".findbar-label.found-matches");
    if (label && !label.dataset.matchesObserved) {
      label.dataset.matchesObserved = "true";
      remove_findbar_matches(label);
      labelObserver.observe(label, {
        attributes: true,
        attributeFilter: ["data-l10n-args", "data-l10n-id"]
      });
    }
  }

  // Watch for when <findbar> is injected into the DOM
  let docObserver = new MutationObserver(() => {
    let findbars = document.querySelectorAll("findbar, #FindToolbar");
    findbars.forEach(attachToFindbar);
  });

  docObserver.observe(document.documentElement, {
    childList: true,
    subtree: true
  });

  // Initial check in case findbar is already in DOM
  document.querySelectorAll("findbar, #FindToolbar").forEach(attachToFindbar);
})();