Bug: Application error: can't access property "endSide", this.last is null

[aabpxdb]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

Error message: can't access property "endSide", this.last is null

Error stack:

addInner@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/main.js:3:569642
add@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/main.js:3:569523
of@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/main.js:3:568712
set@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/main.js:3:597681
init@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/main.js:3:920058
update@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/main.js:3:920924
update@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/main.js:3:552012
48722/applyTransaction/<@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/main.js:3:560292
U4@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/main.js:3:554714
n@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/main.js:3:559495
applyTransaction@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/main.js:3:560262
get state@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/main.js:3:556217
update@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/main.js:3:696818
48722/n/this.dispatchTransactions<@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/main.js:3:695761
dispatch@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/main.js:3:696489
48722/run/<@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/main.js:3:922294
invoke@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/polyfills.js:3:25067
onInvoke@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/main.js:3:80296
invoke@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/polyfills.js:3:25007
run@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/polyfills.js:3:20373
32766/</St/<@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/polyfills.js:3:35248
invokeTask@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/polyfills.js:3:25686
onInvokeTask@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/main.js:3:80112
invokeTask@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/polyfills.js:3:25607
runTask@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/polyfills.js:3:21007
R@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/polyfills.js:3:27718
invokeTask@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/polyfills.js:3:26770
32766/n/this.invoke<@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/polyfills.js:3:26641
32766/Ft/A/n.args[0]@moz-extension://54cbd256-a7f9-46de-9a56-47aa21f28678/polyfills.js:3:46491

Expected Behavior

No errors should occur

Steps To Reproduce

Loaded extension, error presented immediately.

Environment

- OS: Ubuntu 22.04
- Browser: Firefox 142.0.1
- Platform: Firefox Extension
- Version: 8.0.1

Additional context

No response

[imolorhe]

When does this error occur? And does it re occur, or it happened only once?

[aabpxdb]

It occurred repeatedly on the day I reported it. After restarting the browser, it did not reoccur. I believe it may have been a browser upgrade issue, or else fixed by an upgrade to the plugin.