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Firefox keeps jumping up and down
If your Firefox window shakes, bounces, or jumps up and down erratically, you can try the following actions to address the problem.
Table Of Contents
Check extensions and themes
- If you recently switched to a new theme, switch back to the default one - see Customizing Firefox with add-ons.
- If one of your extensions or themes recently updated, try disabling it to see if it is the cause. For instructions, see Troubleshooting extensions and themes.
Check toolbars
- If your Bookmarks Toolbar is showing but it does not contain any bookmarks, either add a bookmark to it or hide the Bookmarks Toolbar. See Bookmarks Toolbar for more information.
- To reset all toolbars and controls to the default settings, follow the instructions to Reset Firefox toolbars and controls.
Based on information from Window shakes (mozillaZine KB)
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