Mozilla/5.0 (Windows; U; Win98; de-DE; rv:1.7.8) Gecko/20050511 Firefox/1.0.4 If you select text like IBM or mozilla.org, you can drag it and drop it to a tab or directly on the tabbar. This went fine in Firefox 1.0.3 and Mozilla 1.7.7, and stopped working in Firefox 1.0.4 and Mozilla 1.7.8. Steps to reproduce: 1. open JS console, clear pending messages. 2. select from text above one of the words IBM or mozilla.org 3. drag selected word to tabbar, see cursor changing. 4. drop to tabbar, watch error in JS console. 5. drag & drop to tab 6. drag & drop to location bar Expected behaviour: drop Behaviour seen: no drop in steps 4 thru 6 in Firefox, 4 and 5 in Mozilla. I don´t want to install an extension for such a simple task.

sorry, regression seems to be older than 1.7.7, and different on Mozilla and Firefox. Mozilla Suite and Firefox give Error: uncaught exception .... when trying to drop link into tab or tabbar. Firefox gives an exception error when trying to drop into location bar Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.7.2) Gecko/20040803 can drop textlink into tab or on tabbar to create a new tab. Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.7.7) Gecko/20050414 Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.7.8) Gecko/20050511 can't drop textlink into tab or on tabbar to create a new tab. Error: uncaught exception: Drop of mozilla.org denied. Error: uncaught exception: Drop of IBM denied. Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8b2) Gecko/20050512 can drop textlink into tab or on tabbar to create a new tab. Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8b2) Gecko/20050416 Firefox/1.0+ Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8b2) Gecko/20050509 Firefox/1.0+ Mozilla/5.0 (Windows; U; Win98; de-DE; rv:1.7.8) Gecko/20050511 Firefox/1.0.4 can't drop textlink into tab or on tabbar to create a new tab. Fehler: uncaught exception: Drop of IBM denied. Fehler: uncaught exception: Drop of mozilla.org denied. can't drop textlink into location bar. Fehler: [Exception... "'Drop of mozilla.org denied.' when calling method: [nsIDOMEventListener::handleEvent]" nsresult: "0x8057001e (NS_ERROR_XPC_JS_THREW_STRING)" location: "<unknown>" data: no] Error: [Exception... "'Drop of IBM denied.' when calling method: [nsIDOMEventListener::handleEvent]" nsresult: "0x8057001e (NS_ERROR_XPC_JS_THREW_STRING)" location: "<unknown>" data: no]

Same thing? Bug 294013

*** This bug has been marked as a duplicate of 289513 ***