Add-on Install & Upgrade

Add-on Install & Upgrade 1.4.3

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Chris D

XenForo developer
Staff member
Then leave the add-on installed (it will be disabled and marked as "Legacy") and leave the database table alone. You'll need it!


Active member
umm, for some reason the install thing not working on XF 1.5.x now. it keep saying some security error, + it keep asking for my

XenForo Community Username + Pass

but it never logs me in and gives me

Security error occurred. Please press back, refresh the page, and try again.

+ there is no error log

im just curios could this be some kind of API thing on your end that's causing these issues? because i cannot find an issue on my end..

this only happens when i try to use the update checker. when i manually go to Resource Manager URL and install from there no issues.
Last edited:


Well-known member
I have about 100 addons installed. Checking for addons that need to be updated would be a lot easier if there would be a filter to display the outdated addons only. Or to sticky those to the top.
Reactions: Xon