Πρόσφατες απαντήσεις προς Firefox 89 on Linux : use not existing Helvetica font broke lot of websitehttps://support.mozilla.org/el/questions/13399942021-06-09T19:21:32-07:00OK : issue already reported : regression with Firefox 89 :
https://bugzilla.mozilla.2021-06-09T19:21:32-07:00denis15https://support.mozilla.org/el/questions/1339994#answer-1420140<p>OK&nbsp;: issue already reported&nbsp;: regression with Firefox 89&nbsp;:
<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=1714318" rel="nofollow">https://bugzilla.mozilla.org/show_bug.cgi?id=1714318</a>
</p>jscher2000 said
body { font-family: -apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-s2021-06-09T18:07:16-07:00denis15https://support.mozilla.org/el/questions/1339994#answer-1420127<em><p>jscher2000 <a href="#answer-1420102" rel="nofollow">said</a></p></em>
<blockquote>body { font-family: -apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif,Apple Color Emoji,Segoe UI Emoji; }</blockquote>
<p>Not totally related&nbsp;: same issue on <a href="https://extensions.sondages.pro/" rel="nofollow">https://extensions.sondages.pro/</a>
</p><p>If i remove manually (via F12/ edit css) Helvetica from the list&nbsp;: Liberation is used (seems to come from my Gnome theme)
</p>
<blockquote>
Are you sure you don't have Helvetica installed? </blockquote>100% sure (and screenshit clezrly show it's broken)
<blockquote>
There is a preference intended to limit fonts used by pages if you don't want "user installed" fonts to be used. You could try this and see whether it makes any difference:</blockquote>
<p>I have 3 on 89 and on ESR (78)&nbsp;: OK in ESR, not OK in 89.
</p><p>I have an account on <a href="https://bugzilla.mozilla.org/" rel="nofollow">https://bugzilla.mozilla.org/</a> , maybe an issue with Helvetica here.
</p>jscher2000 said
body { font-family: -apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-s2021-06-09T18:02:59-07:00denis15https://support.mozilla.org/el/questions/1339994#answer-1420124<em><p>jscher2000 <a href="#answer-1420102" rel="nofollow">said</a></p></em>
<blockquote>body { font-family: -apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif,Apple Color Emoji,Segoe UI Emoji; }</blockquote>
<p>Not totally related&nbsp;: it happen on <a href="https://extensions.sondages.pro/" rel="nofollow">https://extensions.sondages.pro/</a>
If there are Helvetica before sans-serif&nbsp;: Helvetica is choosen.
</p><p>If i remove helvetica from the list&nbsp;: Sans-serif default from Gnome is used (Liberation)
</p>
<blockquote>
Are you sure you don't have Helvetica installed? </blockquote>100% sure&nbsp;! Debian 10 buster from yesterday.
<blockquote>
There is a preference intended to limit fonts used by pages if you don't want "user installed" fonts to be used. You could try this and see whether it makes any difference:</blockquote> It's not want or not&nbsp;: No Helvetica =&gt; no reason to use helvetica.
<p>I have the same value on ESR and 89 (on same computer).
</p><p>I have an account on <a href="https://bugzilla.mozilla.org/index.cgi" rel="nofollow">https://bugzilla.mozilla.org/index.cgi</a>, i really think it's an issue here.
</p>This could vary by OS but when I check the font-family used by the page, I get:
body { font-family: 2021-06-09T17:16:40-07:00jscher2000https://support.mozilla.org/el/questions/1339994#answer-1420102<p>This could vary by OS but when I check the font-family used by the page, I get:
</p><p>body { font-family: -apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif,Apple Color Emoji,Segoe UI Emoji; }
</p><p>On my Windows, the font actually used is Segoe UI.
</p><p>Are you sure you don't have Helvetica installed?
</p><p>There is a preference intended to limit fonts used by pages if you don't want "user installed" fonts to be used. You could try this and see whether it makes any difference:
</p><p>(1) In a new tab, type or paste <strong>about:config</strong> in the address bar and press Enter/Return. Click the button accepting the risk.
</p><p>(2) In the search box in the page, type or paste <strong>layout.css.font-visibility</strong> and pause while the list is filtered
</p><p><em><strong>Note: before Firefox 94</strong></em>
</p><p>(3) Double-click the <strong>layout.css.font-visibility.<u>level</u></strong> preference (or click the pencil button) to display an editing field, and choose a lower value, then press Enter or click the blue check mark button to save the change.
</p><p><em><strong>Note: starting in Firefox 94</strong></em>
</p><p>(3) Double-click the <strong>layout.css.font-visibility.<u>standard</u></strong> preference (or click the pencil button) to display an editing field, and choose a lower value, then press Enter or click the blue check mark button to save the change.
</p><p>Any difference on Github? The values for this preference mean:
</p>
<ul><li> 1 - only use base system fonts
</li><li> 2 - also use fonts from optional language packs
</li><li> 3 - also use user-installed fonts
</li></ul>