Crash report: https://crash-stats.mozilla.org/report/index/d6b3dc86-f2a7-4f36-bcb3-eb2050210202

MOZ_CRASH Reason: [unhandlable oom] Failed not allocate new chunk during GC

Top 10 frames of crashing thread:

0 xul.dll js::AutoEnterOOMUnsafeRegion::crash js/src/vm/JSContext.cpp:1185
1 xul.dll js::AutoEnterOOMUnsafeRegion::crash js/src/vm/JSContext.cpp:1201
2 xul.dll js::gc::AllocateCellInGC js/src/gc/Allocator.cpp:482
3 xul.dll js::TenuringTracer::moveToTenured js/src/gc/Marking.cpp:3442
4 xul.dll js::Nursery::doCollection js/src/gc/Nursery.cpp:1212
5 xul.dll js::Nursery::collect js/src/gc/Nursery.cpp:1055
6 xul.dll js::gc::GCRuntime::collectNursery js/src/gc/GC.cpp:7747
7 xul.dll js::gc::GCRuntime::minorGC js/src/gc/GC.cpp:7713
8 xul.dll js::CloneFunctionReuseScript js/src/vm/JSFunction.cpp:2191
9 xul.dll js::Lambda js/src/vm/Interpreter.cpp:4659

From Nightly Tester Tools 4.0:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0) Gecko/20100101 Firefox/86.0 ID:20210202185823

Adblock Plus - free ad blocker 3.10.2
Amazon Assistant 10.2101.20.12152
Amazon Smile Redirect 2.0.11
Amazon.com 1.3
Auto Tab Discard 0.4.0
Avast Online Security 20.2.501 [DISABLED]
Bing 1.3
DuckDuckGo 1.1
Duplicate Tabs Closer 3.5.3 [DISABLED]
Google 1.1
Nightly Tester Tools 4.0
NoScript 11.2
Print Selection to PDF 0.1.0 [DISABLED]
SortTabs 1.1.0 [DISABLED]
Tab Counter 0.4.1
Tabliss 2.1.0 [DISABLED]
Tabs manager 1.8
Wikipedia (en) 1.1
eBay 1.3