Hi Peter, do you mean on the Downloads list (the one that drops from the toolbar button) it says failed? If you click the item, does Firefox show any additional details about the reason for the failure?

Hi jsher 2000, Yes, it says faile not found and deletd the pdf. I attached by the first contact a Scree shut. I will do it again. Please have a look. Thanks. Peter

Yes,below the copy. current_locale=en downbar_is_collapsed=true first_run=true downbar_show=true downbar_position=bottom downbar_exclude_links=[] display.percent=false display.speed=true display.size=false display.time=true function.clearFiletypes=jpg, jpeg, png, gif function.clearFiletypesKeepHistory=true function.ignoreFiletypes= function.autoFiletypes= function.timeToClear=13 function.askOnDelete=true function.removeOnOpen=false function.removeOnShow=false function.showTooltip=true function.showTooltip_hint=true function.dblclickClearPanel=false function.keepHistory=true function.trimHistory=false function.numToTrim=50 function.numToShowCompleted=50 function.clearFinishedAfterCloseBrowser=false function.hideStatusbarAfterAllFinished=false function.hideStatusbarAfterAllFinishedTime=0 function.virusScan=true function.virusExclude=jpg, jpeg, gif, png function.virusMode=checksum function.virusAutoScan=true function.queueMode=true function.queueNum=13 function.queueIgnoreSizeKB=0 function.popupNotification=true function.popupNotification_filesize=0 function.popupNotification_timesize=0 function.popupNotification_ignore= function.autoOpenFolder=false context_menu.downloadbar_show=true style.default=true style.version=3 style.progressbar_color=#89AFDB style.progressremainder_color=#FFFFFF style.finishedHbox_color=#89AFDB style.notdoneHbox_color=#A3A3A3 style.pausedHbox_border_color=#FF0000 style.filenameLabel_color=#222222 style.filenameLabel_size=9 style.downbar_color=#EEEEEE style.downbar_height=60 style.progressIndicator_size=5 style.tooltipFontSize=9 style.hbox_width=170 style.hbox_height=20 style.button_text_color=#222222 style.button_text_size=9 style.contextmenu_bgcolor=#F0F0F0 style.contextmenu_text_color=#222222 style.contextmenu_text_size=9 style.speedColorsEnabled=true style.speedColor0=#708FB5 style.speedColorKB0=0 style.speedColor1=#81A5CE style.speedColorKB1=50 style.speedColor2=#8FB9E8 style.speedColorKB2=200 style.speedColor3=#9AC5F7 style.speedColorKB3=400 style.useGradients=true function.useAnimation=true function.soundComplete=true function.soundCustomCompleteFile= function.soundCustomCompleteData= function.soundCompleteIgnore= function.soundComplete_filesize=0 function.soundComplete_timesize=0 display.mainButton=true display.clearButton=true display.hideButton=true display.summaryProgress=true display.dateTimeFormat=%Y.%m.%d - %H:%M:%S display.mainButtonFromLeft=true display.clearButtonFromLeft=false display.hideButtonFromLeft=false display.summaryProgressFromLeft=false function.placeDownloadsFromRight=true function.placeDownloadsScrollToNew=true popup.sort_direction=descending DL.openInWindow=false DL.showCreateNewButton=true DL.showPauseButton=true DL.showResumeButton=true DL.showCancelButton=true DL.showRemoveButton=true DL.showTooltip=true DL.showTooltip_hint=true DL.switchDownloadsTab=false DL.dateTimeFormat=%Y.%m.%d - %H:%M:%S DL.confirmDeleteSystem=true DL.confirmDeleteHistory=true DL.sortName=DateTime DL.sortDirection=descending DL.fields_list={"FileName":{"size":1.2,"disabled":false,"order":1},"FileExt":{"size":0.4,"disabled":false,"order":2},"FileFullPath":{"size":1.5,"disabled":false,"order":3},"FileSize":{"size":0.8,"disabled":false,"order":4},"Progress":{"size":1.5,"disabled":false,"order":5},"ProgressPercent":{"size":0.4,"disabled":false,"order":6},"Speed":{"size":0.6,"disabled":false,"order":7},"TimeRemaining":{"size":0.6,"disabled":false,"order":8},"URL":{"size":1.5,"disabled":false,"order":9},"Domain":{"size":0.6,"disabled":false,"order":10},"DateTime":{"size":0.8,"disabled":false,"order":11}} hotkeys=[{"altKey":false,"ctrlKey":true,"key":"j","keyCode":74,"method":"open_downloads","shiftKey":false},{"altKey":false,"ctrlKey":true,"key":"Z","keyCode":90,"method":"hide_downbar","shiftKey":true},{"altKey":false,"ctrlKey":true,"key":"Backspace","keyCode":8,"method":"clear_last","shiftKey":true},{"altKey":false,"ctrlKey":true,"key":"Insert","keyCode":45,"method":"undo_clear","shiftKey":true},{"altKey":false,"ctrlKey":true,"key":"Enter","keyCode":13,"method":"open_last_file","shiftKey":true},{"altKey":true,"ctrlKey":false,"key":"Enter","keyCode":13,"method":"show_last_file","shiftKey":true}]

Can you reattach the screenshot? I have attached an example of a message which has the > for more information. Hopefully that makes my earlier inquiry clearer.

Below the screen shut as well a file

Thank you for the screenshot. I think you are using an add-on for downloading, maybe this one:

https://addons.mozilla.org/firefox/addon/s3download-statusbar/

Does the download also show on Firefox's download list? If not, could you try disabling the add-on temporarily so you can use the built-in features, or if you don't want to disable it, contact the add-on developer for suggestions.