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Firefox crashes on YouTube and Vimeo in combination with Flash player

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I am using the latest version of Firefox on Mac (39.0) in combination with the latest Flash player plugin. When using this combination the Firefox browser always crashes when trying to watch a movie in YouTube and Vimeo. Ik think it has something to do with a conflict between html5 and the Flash player within Firefox. I tried everything : reinstalling Firefox, reinstalling Flash after removing it first, empty cache, cookies and history of Firefox and relaunching it, etc... . Nothing helps. Watching YouTube and Vimeo keeps on crashing Firefox. Please your advice please.

Kris Belgium

I am using the latest version of Firefox on Mac (39.0) in combination with the latest Flash player plugin. When using this combination the Firefox browser always crashes when trying to watch a movie in YouTube and Vimeo. Ik think it has something to do with a conflict between html5 and the Flash player within Firefox. I tried everything : reinstalling Firefox, reinstalling Flash after removing it first, empty cache, cookies and history of Firefox and relaunching it, etc... . Nothing helps. Watching YouTube and Vimeo keeps on crashing Firefox. Please your advice please. Kris Belgium

All Replies (3)

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We're sorry to hear that Firefox is crashing. In order to assist you better, please follow the steps below to provide us crash IDs to help us learn more about your crash.

  1. Enter about:crashes in the Firefox address bar and press Enter. A Submitted Crash Reports list will appear, similar to the one shown below.
  2. Copy the 5 most recent Report IDs that start with bp- and then go back to your forum question and paste those IDs into the "Post a Reply" box.

Note: If a recent Report ID does not start with bp- click on it to submit the report.

(Please don't take a screenshot of your crashes, just copy and paste the IDs. The below image is just an example of what your Firefox screen should look like.)

aboutcrashesFx29

Thank you for your help!

More information and further troubleshooting steps can be found in the Troubleshoot Firefox crashes (closing or quitting unexpectedly) article.

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bp-e5383cc1-bc5a-4753-a63d-805542150715 15/07/15 18:39 bp-ecfdb420-8c7f-4bc4-bf12-276f32150715 15/07/15 18:22 bp-bfb10957-2da1-48d9-b74d-3e26f2150715 15/07/15 18:19 bp-7920c21e-40c6-45d0-a251-7936a2150715 15/07/15 18:18 bp-2356cbdc-88d8-413d-967f-3e6872150715 15/07/15 17:53

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I have the same problem. A Vimeo page will load and FireFox crashes, then again sometimes FireFox (43.0) will crash, it seems at random ?