Mozilla/5.0 (Windows NT 6.1; rv:17.0) Gecko/17.0 Firefox/17.0 On Windows, when downloading pdf files - a square is displayed in the proximity of the Download Indicator. Reproducible: always Steps to reproduce: 1. Launch Firefox and start downloading some pdf files Expected results: No squares (black or white) are displayed near the Download Indicator. Actual results: A white or a black square is displayed near the Download Indicator when the download is complete. Please see the screen cast for more details: http://screencast.com/t/iqRJ8o1A
To clarify: this doesn't happen when downloading pdf-files per se, but when you have a pdf reader embedded in your browsing area. Issue doesn't seem to happen with the built in pdf previewer, but it does happen with Adobe Reader in-browser
General question - how important is this bug, given that we're attempting to ship an inline-PDF viewer targeted for Firefox 18? I should note that this doesn't seem to be a general problem for other plugins. I couldn't reproduce with the Flash plugin, for example.
I don't think it's blocker cause it happens only on certain plug-ins (it may also be platform dependent). The PDF case is likely the most common plug-in you would save from, and as you said pdf.js is going to be shipped by default and won't have issues. This is likely a platform bug, but I suspect it may be complicated and forcing us to do something like disable the animation for certain kind of content.
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