

Note that, if you do receive the warning, pressing Stop Script in the middle of certain operations may disable Zotero until Firefox is restarted and/or may cause the message to reappear. Unless you get frequent freezes afterward, there's no downside to adjusting the timeout. For example, to display the message after two minutes, enter 120. You can also set a longer timeout (in seconds) after which you should receive the message if a Firefox extension is still busy or has frozen.

To disable the warning completely, enter 0 in the dialog box that pops up. Search for dom.max_chrome_script_run_time in the list and double-click it. To prevent the message from appearing, type “about:config” into the Firefox address bar and press Enter. If you receive the message repeatedly, report it in the Zotero Forums, and be sure to include the file and line number from the message in your post. Long answer: Zotero automatically disables this Firefox warning before beginning most long operations and re-enables it afterwards, but there may be places where the message still shows up, particularly on slower computers. This message has nothing to do with Chrome the browser. Short answer: Click Continue until the message stops appearing. Note that for all other URLs, including URLs, the following advice does not apply. …and include a URL beginning with chrome://zotero/. You can stop the script now, or you can continue to see if the script will complete.” “A script on this page may be busy, or it may have stopped responding. People facing problems of YouTube not working properly with Firefox are however not facing the issue with watching YouTube using Google Chrome or Internet Explorer. You will not face this problem with any other video sharing sites like Dailymotion and Twitch. While Zotero is performing long operations, Firefox may display the message: This problem is just with a combination of Firefox and YouTube.
