Drag and drop lists stopped working in Firefox

[Danja P]

As of a few days ago, I'm no longer able to drag and drop lists in Firefox - I can still drag and drop cards, though, and I can also drag and drop lists in Chrome, but not in Firefox. I checked that my software is up to date (Firefox 139.0.4 under Mac OS 15.5), cleared cache and cookies, disabled all browser extensions except UBlock Origin, tried using an incognito window. Anyone got any tips how to solve this? I wouldn't like to change browsers, but I use the drag and drop lists feature so much I fear I have no other choice if this doesn't get resolved. Thanks in advance for any help!

[Rodolfo Moreira · Accepted solution]

Hi Danja , Welcome to the Atlassian Community! I hope you’re enjoying Trello.

I've found that moving checklist items using drag and drop works for me when using Firefox. If you're experiencing issues, could you try disabling all your browser extensions, including uBlock Origin? If the problem persists after doing this, please let us know.

[Danja P]

Hi Rodolfo, thanks for your reply! I'm not talking about checklists, though, but about Trello Lists, which I was able to drag around to reorder them before. I could disable UBlock Origin for test purposes, but I'm unwillig to use Firefox without an adblocker, so even if this solves the problem, it won't be a solution on the long run :)

[Danja P]

I now disabled UBlock Origin just to test and it still doesn't work :)

[Rodolfo Moreira]

Hi @Danja P 

Could you please try again and let us know if it works now? Our team has made some adjustments.

[Danja P]

No, it doesn't work (with UBlock enabled). I also changed to Chrome as of yesterday, since it was no longer feasible otherwise.

[Rodolfo Moreira]

Hi @Danja P, our team has just released an update. To ensure you're seeing the latest changes, please check in an incognito window to avoid any cached data issues.

[Danja P]

Hi Rodolfo, thanks, it works now!