Here is an image of the plugin. It used to show images above the user’s names and now it does not.
Birthday Plugin
This is the only error that showed up in the developer’s console.
TypeError: value is null
Stack trace:
ElementEditor.prototype._createAttribute/collapse@resource://gre/modules/commonjs/toolkit/loader.js -> resource:///modules/devtools/markupview/markup-view.js:2676:1
ElementEditor.prototype._createAttribute@resource://gre/modules/commonjs/toolkit/loader.js -> resource:///modules/devtools/markupview/markup-view.js:2686:49
ElementEditor.prototype.update@resource://gre/modules/commonjs/toolkit/loader.js -> resource:///modules/devtools/markupview/markup-view.js:2508:25
MarkupContainer.prototype.update@resource://gre/modules/commonjs/toolkit/loader.js -> resource:///modules/devtools/markupview/markup-view.js:2016:7
MarkupView.prototype._mutationObserver@resource://gre/modules/commonjs/toolkit/loader.js -> resource:///modules/devtools/markupview/markup-view.js:740:9
emitOnObject@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/event/core.js:112:9
emit@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/event/core.js:89:38
exports.WalkerFront<.getMutations</<@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/devtools/server/actors/inspector.js:3311:7
Handler.prototype.process@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:867:23
this.PromiseWalker.walkerLoop@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:746:7
this.PromiseWalker.scheduleWalkerLoop/<@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:688:37