Found a problem that's not listed here? See [[Getting Help]].

===== Known Issues in Zotero 4.0 =====
  * Spell-check is not available in notes
  * External drag-and-drop is broken on Linux
  * Annotations and highlights of snapshots do not sync

===== Incompatible Add-ons and Applications =====

==== Zotero for Firefox/Zotero Standalone ====

=== Firefox Add-ons (Zotero for Firefox) ===

The following Firefox add-ons are known to cause problems in Zotero for Firefox:

  * **Various Firefox themes (blurry text and other UI anomalies)**
  * Fox Splitter (formerly Split Browser) ([[http://forums.zotero.org/discussion/11951/#Item_6|details]])
  * Facebook Privacy Watcher (removes right-click menu - [[https://forums.zotero.org/discussion/32078?page=1#Item_7|details]])
  * Gliider (empty library; [[http://forums.zotero.org/discussion/10233/#Item_6|details]]; [[http://gliider.uservoice.com/forums/23690-general/suggestions/339809-fix-operability-with-other-addons-like-zotero?ref=title|report to Gliider]])
  * Hola Better Internet (file sync errors; details: [[https://forums.zotero.org/discussion/41102/continuous-file-sync-error/|1]] [[https://forums.zotero.org/discussion/41462/error-in-sync/|2]])
  * InvisibleHand (can't resize columns; [[http://forums.zotero.org/discussion/10453/cant-resize-columns-in-middle-pane-but-figured-out-why/|details]])
  * Lazarus: Form Recovery 2.0.4 (empty space above Zotero pane; [[http://forums.zotero.org/discussion/8511/|details]])
  * Megaupload ([[http://forums.zotero.org/discussion/1458/#Item_5|details]])
  * Privacy Badger (blocks metadata import from web pages; [[https://forums.zotero.org/discussion/52128/|details]])
  * Progress Bar on Tab 1.0 ([[http://forums.zotero.org/discussion/19157/|details]])
  * RealPlayer Browser Record Plugin ("Could Not Save Item"; [[http://forums.zotero.org/discussion/2928/ieee-xplore-error-permission-denied-to-get-property-htmldocumentevaluate/#Item_8|details]])
  * SEASR Analytics for Zotero (blank buttons and menus in preferences; [[http://forums.zotero.org/discussion/18767/zotero-preference-buttons-and-dropdowns-blank/|details]])
  * Skype extension (reported in several forum threads but not reproduced by Zotero developers; [[http://forums.zotero.org/discussion/5567/skype-40-firefox-extension-breaks-zotero-interface/#Comment_24490|details]])
  * SLoMoz (Zotero icon disappears; [[http://forums.zotero.org/discussion/13036/|details]])
  * SwitchProxy ([[http://forums.zotero.org/discussion/2147/cant-see-tag-selector-even-after-toggling/#Item_11|details]])
  * TOR button (breaks drag&drop on some installations [[http://forums.zotero.org/discussion/23210/%3FFocus%3D124810|details]])
  * TotalToolbar 1.4 (empty space above Zotero pane; [[http://forums.zotero.org/discussion/7942/|details]])
  * Vista-Aero theme (?v. 3.0.0.29? [[http://forums.zotero.org/discussion/6663#Item_6|details]])
  * Youlicit ([[http://forums.zotero.org/discussion/2840/no-icon-in-url-bar/#Item_11|details]])

=== Security Software ===

Security software, including but not limited to the following, can often interfere with Zotero:

  * Norton (corrupted login manager error; quarantining of freebl3.dll; [[https://forums.zotero.org/discussion/33458/difficulty-syncing-corrupted-zotero-login-manager-database/|details]])
  * Norton Internet Security --- Identity Safe feature ("Could Not Save Item"; [[http://forums.zotero.org/discussion/5373/?Focus=23300#Comment_23300|details]])
  * Kaspersky ([[http://forums.zotero.org/search/?PostBackAction=Search&Keywords=kaspersky&Type=Comments&btnSubmit=Search|details]])
  * Symantec Endpoint Protection ([[http://forums.zotero.org/discussion/22142/errors-transfering-files-to-standalone/#Item_31|details]])
  * Trend Micro Browser Exploit Prevention Firefox Extension (file sync error; [[https://forums.zotero.org/discussion/38722/|details]])
  * Webroot — Identity Protection feature (pasting rich text from clipboard; [[https://forums.zotero.org/discussion/36428/#Item_15|details]])

For file sync errors in Zotero for Firefox, you may be able to configure the security software to allow Firefox access to the [[zotero data|Zotero data directory]]. You may also be able to sync successfully using Zotero Standalone rather than Zotero for Firefox.

==== Google Chrome Connector ====

The following Chrome extensions are known to cause problems with the Chrome Connector:

  * Bookmarks Menu (makes web page context menu option disappear; [[http://forums.zotero.org/discussion/19287/#Item_5|details]])
  * Data Compression Proxy (may prevent URL bar icon from appearing on some pages; [[https://twitter.com/igallupd/status/451519083063042048|details]])
  * Privacy Badger (blocks metadata import from web pages; [[https://forums.zotero.org/discussion/52128/|details]])

==== Word Processor Integration ====

The following Firefox extensions and applications are known to interfere with the function of the Word and LibreOffice plugins:
  * ZoneAlarm browser virtualization (causes communication error in Word plugin; [[http://forums.zotero.org/discussion/11094/|details]])
  * Kingsoft Internet Security (breaks Word plugin installation; [[http://forums.zotero.org/discussion/16985|details]])
  * MinimizeToTray For FF 3.5 (causes Firefox to open additional windows when using Word plugin; [[http://forums.zotero.org/discussion/8895/solved-problems-with-word-plugin-30a1/|details]])
  * MS Office 2013 Firefox add-ons (make plugin invisible/transparent; [[https://forums.zotero.org/discussion/29524/citation-dialog-box-not-appearing-in-wordwindows-8/#Item_12|details]])