HI I recommend you have a read of this [https://support.mozilla.org/en-US/kb/sort-bookmarks-quickly-find-ones-you-want article] that has some useful guidance around sorting bookmarks by name to help you find the one you are after. I notice that you are using an older version of Firefox. I strongly recommend that you update to get new security and stability fixes as well as new features. You can read more about how to update [https://support.mozilla.org/en-US/kb/update-firefox-latest-version here]. I hope this helps, but if not, please come back here and we can look into a different solution for you.