User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; fr-FR; rv:1.7.8) Gecko/20050511 Firefox/1.0.4 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; fr-FR; rv:1.7.8) Gecko/20050511 Firefox/1.0.4 I saved a link on my desktop thanks to the great drag & drop feature from the URL textbox. But several times when clicking this link from my desktop, Firefox opened 80 tabs. It happened 2 or 3 times when opening firefox with this link. When Firefox was already opened, the link opened correctly. The link : http://www.rueducommerce.fr/Ordinateurs-Peripheriques/Boitiers/Boitiers/RueDuCommerce/363080-Boitier-Moyen-Tour-CS-555WB.htm?pl=360917|356612|347880|363226|359943|359951|361759|361762|366014|363085|361414|361415|361416|359945|359948|351074|363719|360141|360157|362252|361745|361367|361757|363080|363081|356229|361422|365891|366389|366400|365981|360198|363842|366747|363095|363096|355081|355083|355084|360159|361761|366019|365991|363512|353273|362263|365993|361758|361754|354478|366444|366435|363516|363517|355041|365987|365988|365252|363514|363074|365985|356227|363838|363841|366021|360209|360202|360208|363637|360180|360167|363222|363225|366020|360155|365989|364479|360176|360169|361419 Since this URL is quite long and because it opened a lot of tabs, this may cause some security problems. Just hope I'm mistaking ! Reproducible: Sometimes Steps to Reproduce: 1. Open Firefox and browse the url : http://www.rueducommerce.fr/Ordinateurs-Peripheriques/Boitiers/Boitiers/RueDuCommerce/363080-Boitier-Moyen-Tour-CS-555WB.htm?pl=360917|356612|347880|363226|359943|359951|361759|361762|366014|363085|361414|361415|361416|359945|359948|351074|363719|360141|360157|362252|361745|361367|361757|363080|363081|356229|361422|365891|366389|366400|365981|360198|363842|366747|363095|363096|355081|355083|355084|360159|361761|366019|365991|363512|353273|362263|365993|361758|361754|354478|366444|366435|363516|363517|355041|365987|365988|365252|363514|363074|365985|356227|363838|363841|366021|360209|360202|360208|363637|360180|360167|363222|363225|366020|360155|365989|364479|360176|360169|361419 2. Drag & drop the url on your desktop 3. Close Firefox 4. Double click the url to open the webpage (supposing Firefox is set to be your default browser) Expected Results: Open only one page.

Tested again : The 80 tabs open only when no instance of Firefox is launched.

*** This bug has been marked as a duplicate of 221445 ***