User Agent: Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:43.0) Gecko/20100101 Firefox/43.0 Build ID: 20151229124331 Steps to reproduce: Using Qubes 3.1 Release. This is Xen which runs a Fedora-23 virtual machine. Run Firefox-42 or Firefox-43.0.3 in Fedora-23. Attempt to use full screen using F11. Actual results: Most elements stop being redrawn, like the web page, visible tabs, new tab button, etc. Some elements (Webpage content) are redrawn after some events like window resize or clicking F11. Expected results: Webpage changes on scrolling, new tabs are visible in tab menu, etc.

coypu@sdf.org, can you check if the problem happen on nightly or after firefox47?

Since Bug 1241832 fix, XRender is disabled by default.

Unfortunately, this does not fix the bug. I have tried with Firefox version 48.0a1 Thank you for the effort!

coypu@sdf.org, can you attach the graphics section of about:support?

Sorry for the delay. Here it is: Graphics -------- Features Compositing: Basic Asynchronous Pan/Zoom: wheel input enabled WebGL Renderer: VMware, Inc. -- Gallium 0.4 on llvmpipe (LLVM 3.7, 256 bits) Hardware H264 Decoding: No; Failed to create H264 decoder GPU #1 Active: Yes Description: VMware, Inc. -- Gallium 0.4 on llvmpipe (LLVM 3.7, 256 bits) Vendor ID: VMware, Inc. Device ID: Gallium 0.4 on llvmpipe (LLVM 3.7, 256 bits) Driver Version: 2.1 Mesa 11.1.0 (git-525f3c2)

I suspect I left some part out, so this is the full data: Application Basics ------------------ Name: Firefox Version: 49.0a1 Build ID: 20160520030251 Update Channel: nightly User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:49.0) Gecko/20100101 Firefox/49.0 OS: Linux 4.1.13-9.pvops.qubes.x86_64 Multiprocess Windows: 1/1 (Enabled by default) Safe Mode: false Crash Reports for the Last 3 Days --------------------------------- All Crash Reports Extensions ---------- Name: Firefox Hello Version: 1.4.0 Enabled: true ID: loop@mozilla.org Name: Multi-process staged rollout Version: 1.0 Enabled: true ID: e10srollout@mozilla.org Name: Pocket Version: 1.0.3b1 Enabled: true ID: firefox@getpocket.com Name: Privacy Badger Version: 1.7.0 Enabled: true ID: jid1-MnnxcxisBPnSXQ-eff@jetpack Name: VimFx Version: 0.15.0 Enabled: true ID: VimFx@akhodakivskiy.github.com Name: Web Compat Version: 1.0 Enabled: true ID: webcompat@mozilla.org Graphics -------- Features Compositing: Basic Asynchronous Pan/Zoom: wheel input enabled WebGL Renderer: VMware, Inc. -- Gallium 0.4 on llvmpipe (LLVM 3.7, 256 bits) Hardware H264 Decoding: No; Failed to create H264 decoder GPU #1 Active: Yes Description: VMware, Inc. -- Gallium 0.4 on llvmpipe (LLVM 3.7, 256 bits) Vendor ID: VMware, Inc. Device ID: Gallium 0.4 on llvmpipe (LLVM 3.7, 256 bits) Driver Version: 2.1 Mesa 11.1.0 (git-525f3c2) Diagnostics AzureCanvasAccelerated: 0 AzureCanvasBackend: skia AzureContentBackend: cairo AzureFallbackCanvasBackend: none CairoUseXRender: 0 Decision Log HW_COMPOSITING: blocked by default: Acceleration blocked by platform Important Modified Preferences ------------------------------ accessibility.typeaheadfind.flashBar: 0 browser.cache.disk.filesystem_reported: 1 browser.cache.disk.smart_size.first_run: false browser.cache.disk.smart_size.use_old_max: false browser.cache.frecency_experiment: 2 browser.download.importedFromSqlite: true browser.places.smartBookmarksVersion: 8 browser.sessionstore.upgradeBackup.latestBuildID: 20160520030251 browser.startup.homepage_override.buildID: 20160520030251 browser.startup.homepage_override.mstone: 49.0a1 browser.urlbar.userMadeSearchSuggestionsChoice: true dom.apps.reset-permissions: true dom.mozApps.used: true extensions.lastAppVersion: 49.0a1 font.internaluseonly.changed: true media.gmp-gmpopenh264.abi: x86_64-gcc3 media.gmp-gmpopenh264.lastUpdate: 1463819109 media.gmp-gmpopenh264.version: 1.5.3 media.gmp-manager.buildID: 20160520030251 media.gmp-manager.lastCheck: 1463819981 media.gmp.storage.version.observed: 1 network.cookie.prefsMigrated: true network.predictor.cleaned-up: true places.history.expiration.transient_current_max_pages: 20289 plugin.disable_full_page_plugin_for_types: application/pdf plugin.importedState: true privacy.donottrackheader.enabled: true privacy.donottrackheader.value: 1 privacy.sanitize.migrateClearSavedPwdsOnExit: true Important Locked Preferences ---------------------------- Places Database --------------- JavaScript ---------- Incremental GC: Accessibility ------------- Activated: Prevent Accessibility: Library Versions ---------------- Experimental Features --------------------- Sandbox -------