All Products Community Forum

I am getting the following error message when using Firefox. The bookmarks and history system will not be functional because one of Firefox's files is in use by another application. Some security software can cause this problem. I cannot see my bookmarks or add new ones. I followed the directions in articles about this problem and they did not. help. I decided to uninstall Firefox and l re-installed it from scratch and i still get the same error message.

Edit bookmark box won't scroll or show me all my folders/subfolders: When are you going to fix this problem: https://support.mozilla.org/en-US/questions/968861

This used to work fine. I don't want to mess with userChrome.css to get it to work. It should just work like it used to.

Thanks very much...

I was in the middle of asking this question when I fixed (worked around) the problem so I'm posting more as a informative post as there is a lot of old misdirection out there now.

I am(was) unable to drag any URLs from the URI drop down field in the main interface to my bookmarks toolbar. Nor was any drag and drop functionality working in the "Customise Firefox" screen (right click space on url bar -> Customise Toolbar).

I have now found that resetting my zoom setting in preferences to 100% restores this functionality. The problem arose when I was using 120% zoom, NOT text only.

Bought a new computer. All my toolbar bookmarks migrated across successfully. Sidebar symbol missing from the menu bar and I couldn't find where these Book Marks were at first. But then I right clicked on the menu bar, clicked on Manage Book Marks which opened a Library box and there they were. Does anyone know an easier way to access them please? Any tips gratefully received. Thanks, Bob

I just noticed that I can no longer re-arrange tabs by using drag-n-drop or create bookmarks in my bookmarks bar using drag-n-drop. Is this a new "feature" in 127.0?

Click on bookmarks, the drop-down menu appears, click or move cursor on an entry in the list, the new drop-down-menu of 2nd level appears. If the list contains many entries the 2nd level drop-down menu overrides 1st level. This does not happen with firefox preceding version. Note: attaching a picture because a webm video is not accepted.

Test steps

• Navigate to https://httpbin.org/anything/chunter/67d3af89f796929c470ad5cd%7Cchunter%3Aclass%3AChannel?message=
• Click ⋮/Bookmarks/Add
• Click Edit in a popup

Expected result Bookmark editing dialog like for any other bookmark

Actual result Blank screen. Tried on multiple devices.

Firefox Nightly for Developers for Android 138.0a1 (Build #2016079719), hg-0bc4d1520de1+ GV: 138.0a1-20250317094831 AS: 138.20250311050358 and 138.0a1 (Build #2016080007), hg-42a230677167+ GV: 138.0a1-20250318213234 AS: 138.20250311050358

Reported as https://bugzilla.mozilla.org/show_bug.cgi?id=1955223

I wanted to move the Firefox's automatically created bookmark folder "Other Bookmarks" into another folder (called To Sort folder). The folder was moved to the new location but it also remained in the "root" bookmarks folder. I tried to get it to be the other way round so that the "to-Sort" folder will be in the Bookmarks folder but- Trying to move it back it created a loop. Now when I go into the Other Bookmarks folder I can see the "To Sort" and it has a folder in it called "Other Bookmarks", which has the repeated same links and again the "To Sort" which has the "Other Bookmarks" which has the "To Sort" --> etc. ad infinitum

HELP

How do I add an existing 2nd email account to the Firefox Bookmarks. It keeps reverting to the my family account when I try to add a link to open an existing second email address

All of a sudden I am getting an "Invalid URL" error when trying to bookmark a website on Firefox mobile. I have tried pages with different extensions (.com, .org, .tv). I cleared the cache and restarted my phone. Did not work. I have the latest Firefox mobile 142.0.1 and a Samsung A25.

Hello. Today I updated Firefox to Version 138.0.3 64 bit and I have found that the Search Bookmarks in Bookmarks no longer works where as in Version 138.0.1 it did. I have done a Refresh and it still does not work. I was wondering if anyone else is experiencing this problem. Is this a bug or something new with the current update. Could someone tell me how to solve this a using the Search Bookmarks function was a big help. Thank you.

Respectfully, Don

bold text how do i move bookmarks along the bookmarks tab

I have just bought a new computer. Got firefox working and I have bookmarks on the bookmarks tab below the search box.

I used to be able to move bookmark tabs along it and it was my main organisational method.

OR I would drag a url down from the search bar to put it on the bookmark tab below

neither of these methods work any longer and it is a real problem.

I cannot think of a worst thing you could have done.

Help how do i move a bookmark along the bookmark tab, or move a url to the bookmark tab, or move those bookmarks which I can't see to the visible section below the search bar

Initially the bookmarks on Android started appearing in apparently random order after every quit/restart. I signed out of Laptop and Android, then signed in again and set up syncing again on both, but now the bookmarks on my Laptop no longer appear on Android at all, even after syncing.

I would like to be able to store a bookmark in more than one location. I don't believe this is possible since when I move my bookmark, it gets deleted where is used to be when I move it.

Today, as a change, when I open a webpage from the bookmarks toolbar, the new page does not include the toolbar - to get to the toolbar, I have to open a new tab or restart - is there a way to fix this in Settings?

Per title. If I go to bookmarks->bookmark this tab OR clicking the star icon in the address field I always want it to pop up and ask me where to save it, without having to remember to double click the star icon, or go edit bookmarks menu to move it.

This seems like a poor design, at least for me when more than 90% of the time I don't want it to be in the last used folder. I have been adding bookmarks for decades and it has always asked me where to save them, so muscle memory forgets to go back and edit the bookmark I just saved, and then later on I have to go back and change them all because they are never in the right folder.

I understand if I double click the star in the url it will allow me to change it, but when I'm busy I don't remember to click it again, or double click it, then my bookmark is lost and I have to go searching for it and edit it and it's a hassle.

Is there an about:config setting I've missed to re-enable this basic feature to reduce all the clicking?

I've tried browser.bookmarks.editDialog.showForNewBookmarks both false and true without any change to the behavior.

Why is Firefox backing up my bookmarks in a json file, when Firefox itself doesn't recognise the file type when trying to restore said bookmarks? I WAS able to restore my bookmarks by converting the json file at https://www.jeffersonscher.com/ffu/bookbackreader.html. But why can't Firefox just back up as an html file like to used to? I had to go off searching the internet for a solution, turning what should've been a 5 minute job into nearly an hour 😕