To fix, you can either delete them manually or run this in Tools → Developer → Run JavaScript to delete all feeds:

You can paste the script into Tools->Developer->Run JavaScript and modify the first few lines of code to suit your needs.

[JavaScript Error: "Error: Only 0 translators present in cache. Resetting

[JavaScript Error: "No tab with id: 1552309702."]

after I tried to use Zotero to cite anything from library to google docs (This fails again and showed an error: [JavaScript Error: "Method document/execCommand failed global code@connector.js:283:58"]

[JavaScript Error: "HTTP request to http://127.0.0.1:23119/connector/getTranslatorCode rejected with status 0"]

[JavaScript Error: "Error(s) encountered during statement execution: database disk image is malformed" {file: "resource://gre/modules/Sqlite.jsm" line: 807}]

[JavaScript Error: "An unhandled exception occured. [convertToNoteType:y:\adomas\zotero\word-for-windows-integration\build\zoterowinwordintegration\field.cpp]"]

[JavaScript Error: "WebSocket connection closed: 1006 "]

When I try to edit a calendar entry on https://calendar.google.com with the Zotero Connector add-on installed, I get the Javascript error "Error: getTranslators: detection is already running (translat

[JavaScript Error: "Error: Invalid library ID undefined" {file: "chrome://zotero/content/xpcom/data/libraries.js" line: 146}]

[JavaScript Error: "Component returned failure code: 0x804b000a (NS_ERROR_MALFORMED_URI) [nsIIOService.newURI]" {file: "chrome://zotero/content/xpcom/storage/webdav.js" line: 205}]

This is a feature request. As pointed out, Zotero can capture from GitHub with the .cff file. However, I think it would be interesting if Zotero could also automatically generate a .cff file based on

[JavaScript Error: "Upload request 1/ZCBL3Z77 failed"]

[JavaScript Error: "blob is null" {file: "chrome://zotero/content/xpcom/editorInstance.js" line: 726}]

[JavaScript Error: "Component returned failure code: 0x804b000a (NS_ERROR_MALFORMED_URI) [nsIIOService.newURI]" {file: "chrome://zotero/content/xpcom/storage/webdav.js" line: 205}]

But here's a quick script you can run in Tools → Developer → Run JavaScript to add image annotation tags to the comment field for any selected items in the items list:

[JavaScript Warning: "unreachable code after return statement" {file: "resource://zotero/loader.jsm -> resource://zotero/bluebird/util.js" line: 205 column: 4 source: " eval(obj);

[JavaScript Error: "The connection was refused when attempting to contact wss://stream.zotero.org/."]

[JavaScript Error: "Upload request 1/NJHF6437 failed"]