https://mozilla.logbot.info/gfx/20190726#c16497308-c16497309 > pseudo-free texture memory For me, problems of bug 1565809 so far only appeared after longer active usage my many tabs. And in the background, Thunderbird is always running with WebRender enabled, but behaves well and never shows any bugs.
Bug 1562462 Comment 29 Edit History
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https://mozilla.logbot.info/gfx/20190726#c16497308-c16497309 > pseudo-free texture memory For me, problems of bug 1565809 so far only appeared after longer active usage with many tabs. And in the background, Thunderbird is always running with WebRender enabled, but behaves well and never shows any bugs.