metamask-extension fix: update useHistoricalPrices getShouldShowFiat selector

Description

Changelog

CHANGELOG entry: show token charts when adding new network

Related issues

Fixes: #38298

Manual testing steps

See issue repro steps.

Screenshots/Recordings

Before

After

Pre-merge author checklist

[x] I've followed MetaMask Contributor Docs and MetaMask Extension Coding Standards.
[x] I've completed the PR template to the best of my ability
[x] I’ve included tests if applicable
[x] I’ve documented my code using JSDoc format if applicable
[x] I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

[ ] I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
[ ] I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

[!NOTE] Update useHistoricalPrices to pass a hex chainId to getShouldShowFiat by converting CAIP IDs when needed.

UI Hooks (ui/pages/asset/hooks/useHistoricalPrices.ts):

Selector update: Call getShouldShowFiat(state, hexChainId) instead of a global selector.

Chain ID handling: Add toHexChainId helper and import convertCaipToHexChainId to convert CAIP chain IDs to hex before selector use.

^{Written by Cursor Bugbot for commit 9f8fffec0d348d5fa4d32d99752f3b0be003a2d8. This will update automatically on new commits. Configure here.}

Dec 10 '25 17:12 Prithpal-Sooriya

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

Dec 10 '25 17:12 github-actions[bot]

Builds ready [9f8fffe]

builds: chrome, firefox
builds (beta): chrome, firefox
builds (flask): chrome, firefox
builds (test): chrome, firefox
builds (test-flask): chrome, firefox
bundle size: Bundle Size Stats
user-actions-benchmark: User Actions Stats
storybook: Storybook
typescript migration: Dashboard
all artifacts
bundle viz:
- background: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
- common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
- ui: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18
- content-script: 0
- offscreen: 0

UI Startup Metrics (1268 ± 121 ms)

Platform	BuildType	Page	Metric	Mean (ms)	Min (ms)	Max (ms)	Std Dev (ms)	P 75 (ms)	P 95 (ms)
Chrome	Browserify	Standard Home	uiStartup	1268	1023	1596	121	1339	1449
			load	1040	857	1359	105	1114	1231
			domContentLoaded	1033	851	1351	105	1108	1224
			domInteractive	26	16	109	19	22	80
			firstPaint	522	89	1373	407	1014	1183
			backgroundConnect	213	193	261	13	218	239
			firstReactRender	45	30	109	15	47	80
			getState	37	17	123	20	39	92
			initialActions	1	0	4	1	1	2
			loadScripts	828	653	1124	100	894	1015
			setupStore	11	7	27	4	12	19
			numNetworkReqs	13	6	83	20	6	73
	Browserify	Power User Home	uiStartup	1884	1392	2820	185	1972	2200
			load	1050	868	1713	139	1133	1309
			domContentLoaded	1040	860	1704	138	1126	1297
			domInteractive	30	17	137	25	25	98
			firstPaint	636	112	1403	399	1013	1223
			backgroundConnect	255	187	809	119	229	566
			firstReactRender	50	38	93	9	54	69
			getState	204	150	697	59	221	279
			initialActions	1	0	3	1	1	2
			loadScripts	839	670	1462	134	921	1090
			setupStore	16	7	221	22	13	37
			numNetworkReqs	71	58	146	21	67	135
	Webpack	Standard Home	uiStartup	811	671	990	75	876	934
			load	653	571	842	75	689	815
			domContentLoaded	647	566	836	74	685	810
			domInteractive	25	16	110	19	22	78
			firstPaint	215	82	774	150	205	690
			backgroundConnect	13	6	223	22	13	27
			firstReactRender	50	31	178	28	53	121
			getState	28	14	132	16	36	48
			initialActions	1	0	4	1	1	2
			loadScripts	644	561	834	74	683	806
			setupStore	11	5	31	5	12	21
			numNetworkReqs	13	6	83	19	6	68
	Webpack	Power User Home	uiStartup	1423	1113	1777	178	1577	1747
			load	737	588	968	99	809	919
			domContentLoaded	729	583	957	98	799	910
			domInteractive	33	18	166	28	28	109
			firstPaint	366	88	942	257	643	892
			backgroundConnect	90	8	616	142	113	586
			firstReactRender	53	41	71	6	56	65
			getState	201	150	371	42	209	327
			initialActions	1	0	2	0	1	2
			loadScripts	726	580	954	97	796	903
			setupStore	15	9	41	8	14	37
			numNetworkReqs	71	56	223	26	67	137
Firefox	Browserify	Standard Home	uiStartup	1453	1158	2444	219	1525	1952
			load	1156	957	2186	163	1202	1315
			domContentLoaded	1155	957	2186	163	1202	1315
			domInteractive	84	34	1087	107	95	147
			firstPaint	-	-	-	-	-	-
			backgroundConnect	60	20	238	47	82	186
			firstReactRender	42	32	73	8	46	60
			getState	15	7	105	14	14	31
			initialActions	1	0	3	1	2	2
			loadScripts	1123	942	2119	157	1175	1284
			setupStore	17	5	223	28	12	49
			numNetworkReqs	15	6	79	20	9	75
	Browserify	Power User Home	uiStartup	2630	1576	3908	570	3040	3566
			load	1580	959	2655	501	2041	2480
			domContentLoaded	1579	959	2655	501	2041	2479
			domInteractive	89	28	964	110	85	283
			firstPaint	-	-	-	-	-	-
			backgroundConnect	188	28	1319	246	194	972
			firstReactRender	57	40	103	13	61	86
			getState	133	73	408	45	157	199
			initialActions	2	0	33	3	3	7
			loadScripts	1497	944	2512	465	1912	2317
			setupStore	63	5	1039	149	61	232
			numNetworkReqs	75	57	135	22	73	127
	Webpack	Standard Home	uiStartup	1675	1365	4881	379	1745	2020
			load	1361	1150	2536	161	1401	1583
			domContentLoaded	1361	1150	2536	161	1401	1582
			domInteractive	96	28	1348	132	115	149
			firstPaint	-	-	-	-	-	-
			backgroundConnect	61	23	257	43	63	161
			firstReactRender	74	36	2939	288	48	58
			getState	17	8	149	21	15	61
			initialActions	1	0	3	0	2	2
			loadScripts	1330	1135	2512	158	1371	1555
			setupStore	16	6	113	17	15	58
			numNetworkReqs	15	6	79	21	8	76
	Webpack	Power User Home	uiStartup	2729	1799	4546	587	3155	3739
			load	1844	1151	3489	514	2321	2538
			domContentLoaded	1844	1151	3488	514	2321	2537
			domInteractive	204	32	1179	320	122	1002
			firstPaint	-	-	-	-	-	-
			backgroundConnect	143	26	1100	175	188	294
			firstReactRender	57	38	97	10	63	74
			getState	145	80	319	53	181	240
			initialActions	3	0	49	6	2	8
			loadScripts	1769	1133	2668	466	2238	2471
			setupStore	76	6	1097	168	60	354
			numNetworkReqs	75	55	135	24	67	126

📊 Page Load Benchmark Results

Current Commit: 9f8fffe | Date: 12/10/2025

📄 Localhost MetaMask Test Dapp

Samples: 100

Summary

pageLoadTime-> current mean value: 1.03s (±44ms) 🟡 | historical mean value: 1.03s ⬆️ (historical data)
domContentLoaded-> current mean value: 719ms (±36ms) 🟢 | historical mean value: 717ms ⬆️ (historical data)
firstContentfulPaint-> current mean value: 77ms (±12ms) 🟢 | historical mean value: 77ms ⬇️ (historical data)

📈 Detailed Results

Metric	Mean	Std Dev	Min	Max	P95	P99
pageLoadTime	1.03s	44ms	1.01s	1.33s	1.07s	1.33s
domContentLoaded	719ms	36ms	699ms	997ms	742ms	997ms
firstPaint	77ms	12ms	60ms	180ms	84ms	180ms
firstContentfulPaint	77ms	12ms	60ms	180ms	84ms	180ms
largestContentfulPaint	0ms	0ms	0ms	0ms	0ms	0ms

Bundle size diffs [🚀 Bundle size reduced!]

background: 58 Bytes (0%)
ui: 344 Bytes (0%)
common: -68 Bytes (0%)

Dec 10 '25 18:12 metamaskbot