***** Update:
I tried your suggestion. As soon as I click (left or right) within the search pane,, the folder pane scrolls to the source bookmark, just as I'd previously described, again obliterating the view of the target folder. So, I assume you meant right clicking in the folder pane, instead. (But the act of locating the bookmark in the folder pane still scrolls the target folder out of view, regardless of how one accomplishes it!)

(And as before, when moving a lot of related bookmarks at once, a massive amount of "seesawing" is required. [for example to move 26 bookmark search results
into a target folder, one would currently:
  a) CLICK the search hit
     (causing target folder to disappear from view due to scrolling),
  b) cut,
  c) locate target folder again,
  d) paste,
    <perform 25 more repetitions of steps a,b,c,d, one repetition of each of the
    four steps for each of the remaining 25 bookmarks>

That adds up to 104 steps,
but the same results could be accomplished in three steps (selection, one cut, and one paste) with a change such as that described in item 3 below
 ] )

When I looked at the search pane's right click menu, I saw that it contains:
  Show Bookmark
  Go to parent folder
  Open
  <three other varieties of "Open">

but it does not contain "cut", unlike the right-click menu within the folder pane.
 
Although these two changes could make it unnecessary to keep locating the target folder over and over again,
  [
  1. When right clicking within the search pane, don't scroll the folder pane
   (but still do so with left clicks)
  2. Add "cut" to the search pane's right-click menu
  ],
. . .
an alternate version of that that approach would be immensely more useful:
  3. in the search pane, instead of the above two changes:
   3a. Allow use of a shift key modifier with left clicks to permit selecting
     a range of search results prior to using "cut".
   3b. When the shift key modifier is used with either left or right click,
     just select - don't "act" (don't scroll the folder pane)
   3c. Permit using a control key modifier with left clicks to select
     non-contiguous search result "hits".
   3d. Add "cut" to the search pane's right-click menu.

This change would permit moving multiple related bookmarks all at once to a single target folder using a single "cut" and a single "paste", and would solve the "back-and-forth" seesaw problem in a different manner than the one suggested in my first message.

--------------------------
****** Original message:

Nice concept. Definitely more useful than the built-in bookmark manager.

I have one major problem using it. When trying to organize a large collection of existing bookmarks, I have significant difficulty moving bookmarks into different or new folders for the common case in which each bookmark and its new folder are at a greater distance from each other than can be displayed on the screen.

One thing that might make this be easier could be the ability to drag a bookmark directly from the search results. As it stands now, when one clicks on a search hit, doing so will scroll the tree display until the bookmark corresponding to the clicked search hit is displayed.
Unfortunately, scrolling the tree display for that purpose also has the side effect of scrolling the target folder off the screen, so that it is no longer directly accessible.

One can awkwardly get around the problem by using one of two methods:
​  Method One: drag the bookmark up to the boundary between the tree display and the search-box display and wiggle it over the boundary repeatedly, causing the tree display to slowly scroll upwards until the target folder comes back into view, and dropping it onto the target once it can finally be reached.
​  Method Two: Drag the bookmark upward to a point between the top two items visible in the tree view, then scrolling the tree view until it reaches the bottom of the screen. Do this repeatedly until the target folder comes into view, and then drag one last time into the target folder.

If one could drag directly from the search frame to the target folder, such scrolling could be avoided in the case where one is moving individual bookmarks located via search..

A more general approach might be to have a menu choice when right-clicking the target folder that would cause the folder to pop up as its own window, permitting one to move one or more items from various locations within the tree to the target without having to locate both the source and target each time to facilitate each move.

In case the popup would be an implementation hassle, perhaps instead a static (unaffected by scrolling the tree) frame displaying the target folder could be the result of selecting the aforementioned right-click menu choice (instead of popping up a window, that is).

[ Note: I had originally written "implementation drag", not "implementation hassle", but changed it upon being told that it might be misinterpreted as the result of a mouse action. ]

I've downgraded my rating because I can no longer get this to load on my Win7 system with Fx 65. (Keeps trying to load.) It may work with your system--hence not the lowest rating.

Whew! It will free up tons of my man-hours. Very good job!
Some remarks:
- links to local files do not work
- inconsistent behavior when clicking bookmark with middle-mouse-button: link opens in a new tab (as it should), but the sidebar goes into autoscrolling mode

Special thanks for the bookmark statistics in addon/preferences :)

Holy Crap! Thank you! I've been looking for something like this ever since the Alice0775 add-ons stopped working. This is one feature that Mozilla really fell on it's face when it re-wrote FF.

It does NOT show the folder where the bookmark is contained (using Macbook Pro).

Thank you aaFn and good people at Mozilla for all you effort!

I loved Alice0775, for making available "Go Parent Folder" and "Show Parent Folder" for all the people with more than 10 pages bookmarked.
When you search something in bookmarks, being able to actually go(not just open it, in a tab), where the found bookmark is located, is a MUST have in every default FF.
When I search for something in bookmarks, sometimes I just want to find(because I do not(want to) remember all the hierarchy) the subfolder in which it is, so I can add a new bookmark there. Same logic goes for deleting something and tidying up.
Another missing, but important thing in bookmarks, is to search for FOLDER NAMES too. Same logic as above...say I want to add a website link to bookmarks, but cannot remember the exact name of the folder where I put the similar links. To my knowledge, FF does not search in the names of the folders, it just searches in links. Has this folder name search in bookmarks, been done in those WE? As a workaround for this drawback, I have created a lot of false bookmarks which I named exactly like the folders.
About the translation...I would be happy to translate in my native language(which is not English). Use github translation system(page).
I did not see an email address, where we can talk to you about this extension...maybe you do not want to get bombarded by spam..I get it, although talking through reviews is more difficult and not efficient, and for us non developers, having to use github is not the most convenient way to exchange messages.
Cheers!

Absolutely needed. Just installed it and I can see it is an awesome work. Pressing Ctrl+Q you access the Bookmar searh plus 2 the same way you access to Firefox Bookmarks, History etc on the left pane. You can even see the folders opened as you left them so you can alternate between this view and a different one in FF Bookmarks quickly.
Yet, there's an incovenient. While everything else looks to work consistently, pressing Ctrl+Q opens the left pane but the Search box is not focused (not selected), so you have to take your mouse and go to the search box to start searching for a folder, which it defeats the purpose of the keyboard shortcut (not having to lose time using the mouse or any other device that takes time moving the cursos to place the focus on something).
Moreover, all the other firefox left pane utilities do focus on them with their keyboard shortcut consistently, so we are very used to them, specially to Ctrl+B or Ctrl+H. Then it is frustrating seeing that Ctrl+Q just opens the pane...
Yet, you are doing a good job and working on it, so you deserve the 5 stars now... Thanks!

The "show parent folder" was the functionality I got this for. Perfect!

Edit:
Thanks for your reply, it seems I was trying to drag the only thing that wasn't possible to drag! (highlighting the web address and dragging that), but now that you've pointed out how you can drag
- a tab URL, by dragging from the tab bar at top of the page
- the address bar URL, by dragging the (i) icon at top left
that solves my problem, and also the info about " a link URL in a page, by dragging the link itself" is very useful.
Thanks for your response and help :)

Original Review:
It would be useful if you could add bookmarks by dragging and dropping urls, other than that, it's great and exactly what I was looking for

@ aaFn | Thanks for your timely response.
Update | A few hours before your post I removed the extension and reinstalled it. The Favicon Fetching Pause/Active feature is now working just fine.
Firefox v62.0.2 (64-bit) user
///////
Original Comment | Favicon fetching was working after v2.0.37 update. However, after setting fetching to Pause and later resetting to Active, fetching does not activate even after next FF Restart.
Firefox v62.0.2 (64-bit) user

very very usefull, thanks.

Great extension. Thank you very much for doing it and maintaining it. I must also highlight that the best thing I have seen about this extension is not the extension itself, which is great, but the very open, friendly and honest attitude of its developer. To me, this is the biggest asset of all and one that is not so common. That's why this project deserves full five stars, hands down, regardless of whatever minor imperfections that anyone may have mentioned earlier, which the developer has made honest efforts to fix within his/her power. Kudos!

I have waited for so long for a replacement for "Go Parent Folder" and "Show Parent Folder" and had given up all hope of a decent bookmark system for Firefox.

Thank you for at last fixing Firefox's terrible bookmark management!!

Yayy!!

PS: Any chance of adding a replacement for Alice's "Undo Bookmarks Menu" to undo the last change to the menu? This would be very useful for those accidental mistakes where you drag and drop a folder or shortcut somewhere and it "disappears" - normally deep into some folder somewhere!

This is a very nice addon, especially since the coming of Quantum has disrupted many extensions I used before :-(

It would be PERFECT if , in the search result pane, it was possible to edit all the bookmark fields (Name, Location, Tags, Keyword and Description), as in the native feature (currently, only "Name" and "Address" fields can be changed).

Another feature that is missing is a function allowing to sort alphabetically the bookmarks in the selected folder (the FF-native bookmark context menu allows this also).

Thanks for your work, anyway, keep it up!

Outstanding! That is what I've been looking for a long time. Very often you need not only search some bookmark, but also need to get a folder where it is located. This "plus" does all these things by fast and intuitive way. The all I did after install, just set up the option "After `Show bookmark`".

I Love You ...

very easy to use. great replacement for "show parent folder". minor wish - that it worked in "show all bookmarks" window, not just in sidebar, but doesn't detract from filling a need of something I've been missing. Thank you very much!