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Plugins / Interface & look

Zotero Custom Item Fields

by Dominic-DallOsto · github.com/Dominic-DallOsto/zotero-custom-item-fields

Lets you define your own extra fields on items, such as Relevant or When read, edited under Settings.

Zotero Custom Item Fields has Atlas grade B (use with care) because a zotero:// link (a web page can open one) can make it install add-ons without asking you (from zotero-plugin-toolkit), and 1 more finding. It works with Zotero 7–10. Last checked 6 Nov 2026.

Interface & lookImport & metadata
View source
Downloads a .xpi file (0.04 MB). In Zotero, open Tools → Plugins and install it from the file.
In useAn estimate of how many copies of Zotero have it: Zotero downloads each new version once for every copy that has the plugin, so we count the downloads of its most-downloaded recent release. Rounded. Plugins that update from outside GitHub count low.
270
DownloadsAll-time downloads of its release files from GitHub, counting every update. Installs from elsewhere aren't counted.
577
ReleasesVersions published on GitHub. Everyone who has the plugin downloads each one again, which adds up in Downloads.
6
StarsPeople who starred the repository on GitHub: a rough measure of interest.
15
ContributorsPeople who have committed code to the repository.
2
LicenceThe licence the code is published under, as GitHub reports it.
GPL-3.0
B
Atlas gradeUse with care
because a zotero:// link (a web page can open one) can make it install add-ons without asking you (from zotero-plugin-toolkit), and 1 more finding
Applies to v0.2.0, released 19 Aug 2026Code checked · not yet tested in a live Zotero
What we found in the codeSets the gradeThe worst finding in these three areas sets the grade.
Code transparencyReadable code, uploaded by the project's automated GitHub buildThe release file was uploaded by the project's automated GitHub build. We haven't yet rebuilt it from the source to compare.LowLow concern: normal for plugins that do this job. Listed so you know.
Updates
Updates come from this project's GitHub repositoryThe update address offers this version
Where your data goesNo web requests foundLowLow concern: normal for plugins that do this job. Listed so you know.
No further detail for this area yet.
Powerful capabilitiesA zotero:// link (a web page can open one) can make it install add-ons without asking you, and 1 moreMediumMedium concern: worth reading before you install. One medium finding makes the grade B.
Medium concern (2)
A zotero:// link (a web page can open one) can make it install add-ons without asking you (from zotero-plugin-toolkit)A zotero:// link can make it run code if you approve a prompt (from zotero-plugin-toolkit)
Where we found it
A zotero:// link (a web page can open one) can make it install add-o…chrome/content/scripts/zotero-custom-item-fields.js · line 129

zotero://plugin. zotero-plugin-toolkit removed this link in version 6.0.0; this plugin is built with an older version

Services.io.getProtocolHandler("zotero").wrappedJSObject._extensions["zotero://plugin"] = pluginBridgeExtension;
A zotero:// link can make it run code if you approve a promptchrome/content/scripts/zotero-custom-item-fields.js · line 85

zotero://ztoolkit-debug

Services.io.getProtocolHandler("zotero").wrappedJSObject._extensions["zotero://ztoolkit-debug"] = debugBridgeExtension;
Before you installShown, not gradedFacts to help you decide. They don't change the grade.
Works withZotero 7, 8, 9, 10 · not 11 betaUpdates automatically
Zotero 7 ✓ worksZotero 8 ✓ worksZotero 9 ✓ worksZotero 10 ✓ worksZotero 11 beta ✗ doesn't work
What you'll needNothing extra detectedDetected automatically from its code
No further detail for this area yet.
MaintenanceActive · last release 19 Aug 20262 contributors
No further detail for this area yet.
LanguagesDocumentation in EnglishInterface: English
No further detail for this area yet.
We report what we found in the code. Open any area for the evidence.How we gradeReport a problem

What it does

Written by AI from the README

Lets you define your own extra fields on items, such as Relevant or When read, edited under Settings. The fields can also be shown as columns in the item list.

Zotero has a fixed set of fields, so personal tracking data ends up crammed into Extra or tags. This gives it proper fields you can sort by.

What you'll need

Detected automatically

We haven't detected any setup requirements. That isn't the same as none: check the developer's README.

Where your data goes

We found: no web requests found.

Other plugins that do this

Matched on what they do

For the same job, work with Zotero 10 and graded B or better. Closest match first.

  • A
    Extra Columns

    Lets you add your own text or number columns to the item list, editable in the Info section.

    Matches “add custom columns” · 150 downloads · Active · Zotero 10
Compare all 2 side by side
How we pick these

By how closely what they do matches this plugin, using descriptions and the phrases people search with. Copies and forks of this plugin are listed under Forks and copies instead. No plugin pays to appear here.

Forks and copies

No forks listed.

The developer's response

The developer hasn't responded. Developers can reply here, and their reply sits next to our findings.I'm the developer

Ratings and reviews

What people who use it say. This is separate from the grade, which is what the code does, and never changes it.

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Install Zotero Custom Item Fields
BUse with care
Before you install: A zotero:// link (a web page can open one) can make it install add-ons without asking you (from zotero-plugin-toolkit), and 1 more finding.Read the finding
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